odd little souls

Posted by Nagi

https://www.recipetineats.com/duchess-potato-chicken-mushroom-pie/

I want to rave about the rich, savoury filling of this Chicken Mushroom Pie, but all anyone can talk about is the Duchess Potato topping…..😅 Fluffy and buttery inside with crispy parmesan crusted ridges, I want to pick them off one by one and eat them all by myself!

A chicken mushroom pie like no other!

This is a pie with a lid like no other. We are talking fluffy, buttery swirls of mashed potato piped into mounds – Duchess Potato style – drizzled with butter and baked until golden, crusted with parmesan.

The peaks and ridges are crispy, the inside is fluffy and creamy, and the underside soaks up the rich sauce of the pie filling underneath. It’s basically a fancy potato crown for your pie……

Sorry puff pastry! You’ve been dethroned!

As for what’s underneath? A rich pie filling with big juicy bites of chicken and mushroom with a deeply savoury dark brown sauce that tastes like you’ve been slow cooking for hours rather than 15 minutes.

It’s definitely a cut above your regular chicken pie. In fact, it was originally christened an Extra Good Chicken Mushroom Pie (go on, have a giggle and mock my lack of creative writing skills!). I had planned to tell you the little extra things I do to make it extra good: Guinness beer for instant depth in the sauce (think – Guinness Stew!), searing chicken pieces whole rather than chopped for better colour (which equals flavour), and using beef rather than chicken stock for a darker, deeper flavoured sauce.

Little things – but they make such a difference!

PS You’ll feel like you’re decorating a cake when you pipe the mash. It’s oddly satisfying / amusing.

Ingredients for Duchess Potato Chicken Mushroom Pie

If you make the mistake of adding up the total butter in the recipe (I am not going to do the maths for you), just a reminder that we’re making an extra good pie here. 🥰 If you really want need to cut back (doctor’s orders are just about the only acceptable reason), you can use oil spray instead of butter to sear the chicken and spritz the surface of the potato, and skip the second dab of butter in the mushrooms.

Just don’t skip the butter to make the roux, else you risk lumpy sauce. 🙂

1. CHICKEN FOR THE PIE

I prefer to use chicken thighs rather than breast, for juicier bites of chicken. Though, this is still very nice made with breast (it won’t overcook), I just think it’s better with thigh.

2. PIE FILLING SAUCE AND OTHER STUFF

Here’s what you need for the other pie add-ins and the sauce:

• Guinness beer – This is the secret ingredient that makes Irish Beef Stew one of the greatest in the world, giving the sauce a rich, dark brown colour and beautiful depth of flavour. It doesn’t taste beery at all because the alcohol is cooked out. Cans here in Australia are 470ml (16oz) so you’ll get two batches of this pie plus a few swigs for yourself out of a can (freeze leftover beer, it’s fine to use flat in cooking).

  See FAQ for gluten-free option making this with wine instead of beer.

• Beef stock – The other liquid for the sauce. Beef rather than chicken stock (the usual choice when cooking with chicken), for a darker brown sauce with deeper flavour.

• Bacon – Thick cut streaky works best so you end up with nice pieces throughout the stew. The finely cut slices (which tend to be the more artisan style bacon) will work but they are a bit too delicate for a stew situation – they curl and break.

• Mushrooms – This is the main vegetable in this pie so we’re using a good amount, 500g/1lb in total. I love the pops of juiciness they bring into the filling, and how they are a sponge for sauce. Substitute with carrots, celery and peas (pie favourites!)

• Garlic and onion – Flavour base for the sauce. I like to cut the onion larger than usual – either 2.5cm/1″ squares or thick wedges – I just think it looks nicer in the sauce than having a gazillion tiny little diced pieces.

• Thyme – Classic herb choice for this sauce, also used in Guinness Stew.

• Flour – Thickens the sauce. Just regular plain/all-purpose flour. See FAQ for gluten-free option.

• Tomato paste – Just 1 tablespoon thickens the sauce slightly and adds a touch of acidity to cut through the savouriness of the sauce. It was a late addition, and it’s definitely a more balanced sauce with it.

• Butter – For cooking the mushrooms, chicken and making the roux (each cooked separately in this extra good pie recipe 🙂 ). You can cut down if using other vegetables than don’t absorb oil (like carrots) and use oil spray instead for browning the chicken. But you need the butter for the roux (ie the step when you mix flour in) as you need a minimum amount of fat else you’ll end up with a lumpy gravy.

3. DUCHESS POTATO TOPPING

And lastly, here’s what you need for the Duchess potatoes lid for this magnificent pie! Potatoes, butter and milk for the creamy mash, then parmesan (store bought grated works best) and extra butter for drizzling for the topping.

• Potatoes – Starchy potatoes, rather than waxy, are best, so the inside of the duchess potato swirls are fluffy inside with a light crust on the surface. Australia – Sebago are ideal (those dirt brushed potatoes we get “everywhere”). US – Russet, and UK – King Edward or Maris Piper are perfect. Or any other starchy potatoes – Dutch creams, King Edwards or red delight.

• Parmesan – Newsflash! Store bought grated parmesan (the sandy type) works better here as it seems to nestle in the crevices better than finely grating your own. I find that grating my own is so light, like delicate snow flakes, you can end up with a layer that sits on top of the ridges of the swirls which bakes up like a thin parmesan crisp rather than melting inside the ridges. (Am I really still writing about this? BUT THESE LITTLE DETAILS MATTER TO ME! #ThatCrazyHomeCook 😅)

How to make Duchess Potato Chicken Mushroom Pie

The order of cooking really matters here. Sear the chicken first and you’ll end up with a burnt pan before you even start the sauce. Cook mushrooms with the onion and they just go watery without browning. And if you don’t reduce the Guinness before adding flour, the sauce tastes too beery because we’re not slow cooking for hours like we do Irish Guinness Stew.

So no, it’s not a quick throw-it-all-in-and-go recipe. But if you want a really good chicken pie, you’ve got one right here. 🙂

1. Filling

Use a large, deep, non stick pan. Mine is 30cm/12″ wide – this one (shop around, I got mine for around $80, and no, that’s not an affiliate link!).

1. Garlic butter mushrooms first – Melt butter on high heat, add mushrooms and stir for 3 minutes until lightly coloured but still firm – they will finish cooking in the sauce. Add a bit more butter, melt, toss to coat, then add garlic, salt and pepper. Cook 20 seconds until garlic is golden, then transfer to a bowl, scraping out all the garlic bits (or they’ll burn).

   💡Adding the butter at the end is my trick for getting that rich buttery flavour on mushrooms without needing loads of butter at the start. Mushrooms are sponges for fat!

2. Golden seared chicken – Season with salt and pepper then sear until nicely golden on both sides (~2 minutes). The chicken should still be raw inside – we finish cooking it through later. Once cool, cut into large 2.5cm/1″ pieces (I do this while the sauce is simmering).

   💡Searing whole gives better colour and flavour than chopped – both on the chicken and in the sauce (thanks to all those golden pan bits – fond!).

3. Bacon and onion – Lower the heat slightly so golden bits stuck on the base of the pan don’t burn. Give the bacon a head start – cook for 20 seconds, then add the onion and cook until it’s starting to soften (~ 2 minutes). Add garlic and cook for another 20 seconds until golden.

4. Deglaze with Guinness – Add the beer, turn heat up to high and simmer rapidly while you scrape the base of the pan to loosen any bits stuck on it. Simmer until reduced by about 75% – this will cook out the alcohol and beeriness, leaving behind rich savoury flavour that makes the sauce so special!

5. Roux – Add butter and let it melt, then sprinkle the flour across the surface and mix it in. It will look like thoroughly unappetising sludge – have faith! 🙂

6. Beef stock – While stirring the sludge in the pan, pour in half the beef stock, then keep mixing until the sludge dissolves – the liquid will become a very thick gravy.

7. Sauce thickness – Here’s how it looks at this stage. Very thick!

8. Simmer mushrooms – Then pour the remaining beef stock in, plus the water, tomato paste, salt and pepper. Stir to combine (it should be quite thin and watery) then add the mushrooms. Simmer for 8 to 10 minutes. During this time, the mushrooms will cook and the liquid will reduce and thicken into a gravy.

9. Add chicken – Once the sauce has thickened, add the chopped chicken and any accumulated chicken juices.

10. Thicken – Simmer for another 2 minutes until the gravy thickens slightly but remains saucy. However thick or saucy it is now is how it will be inside the pie once baked. Goal thickness – when you drag a spoon across the base of the pan, the path should briefly hold before the liquid flows back over it (like pictured above).

PIPING THE DUCHESS POTATO TOPPING

1. Fill pan – Pour the filling into a 6 – 8 cup / 1.5 – 2 litre pan. You could put it in individual heatproof pie dishes or ramekins. Smooth the surface to create a flat bed for the Duchess Potatoes.

2. Pipe mashed potato topping – Fill a piping bag fitted with a star tip with hot creamy mashed potato, then pipe mounds across the surface in any pattern you want. My swirls have a ~ 4cm/1.6″ base and are about 4cm / 1.4″ tall.

3. Little blobs – Use the remaining mash to pipe little swirls or blobs to fill gaps. I do this randomly – neatness isn’t the goal, I love the rustic, uneven look. Plus, everybody loves Duchess Potatoes, so squeeze in as many as you can!

4. Drizzle and sprinkle – Drizzle the butter all over, then sprinkle with parmesan.

BAKING

1. Bake for 30 minutes until the potatoes are tinged with gold and lightly crispy, and it’s bubbling around the edges. Note to self: If your pan is rather full (like mine), put a tray on the floor of the oven to catch drips!

2. Rest for 5 minutes, just to let it stabilise a bit before serving (if you serve it straight out of the oven, it’s a bit of sloppy mess!). And if you’re feeling really fancy, sprinkle with a pinch of parsley for a dusting of green freshness.

HOW GOOD DOES THAT LOOK!!! And just wait until you taste it!

Use a large spatula or serving spoon so you can get a good amount of pie filling and potato topping together when serving. The Duchess Potatoes actually holds together quite well when scooped out.

Now. It’s time for you to come clean.

Be honest.

You want to pick off all the Duchess Potatoes and run away with them too, right? 😈 Don’t leave me hanging! – Nagi x

Watch how to make it

Print

Duchess Potato Chicken Mushroom Pie

Recipe video above. I want to rave about the rich, savoury filling of this Chicken Mushroom Pie, but all anyone can talk about is the Duchess Potato topping…..😅 Fluffy and buttery inside with crispy parmesan crusted ridges, I want to pick them off one by one and eat them all by myself!

As for what's under the lid – it's a stunner. Think – Guinness Stew, but with chicken (and 2 hours faster). Guinness beer adds instant depth of flavour, and beef rather than chicken broth has a richer flavour and makes the sauce a deep brown rather than a pale beige colour. Also, searing the chicken pieces whole and cut later (better colour!) and don't skimp on butter (it's worth it!!!)

Make one big pie as I've done, or single serve size. Excellent for making ahead to bake later!

Course Mains

Cuisine Western

Keyword chicken cottage pie, chicken mushroom pie, chicken pie, potato topped chicken pie

Prep Time 20 minutes minutes

Cook Time 1 hour hour

Servings 6

Calories 577cal

Author Nagi

Ingredients

• 60 g / (4 tbsp) unsalted butter , approximately divided into 4 (no need to be accurate)
• 4 garlic cloves , finely minced
• 1 1/2 tsp cooking salt / kosher salt , divided (Note 1)
• 1 tsp black pepper , divided

Pie filling:

• 750 g / 1.5 lb chicken thighs , boneless skinless (Note 2)
• 500 g/1 lb button mushrooms – very small ones whole , larger ones halved or quartered
• 100 g / 3.5 oz thick cut streaky bacon , cut into 2.5cm/1″ squares
• 1 1/2 onions , cut into 2cm/1″ square or thick wedges
• 2 sprigs fresh thyme (or 1/2 tsp dried thyme)
• 1/4 cup plain flour (all-purpose flour)
• 3/4 cup Guinness beer (Note 3)
• 1 1/2 cups beef stock / broth , low sodium
• 3/4 cup water
• 1 tbsp tomato paste

Mashed potato topping:

• 1 kg / 2 lb starchy potatoes , peeled, cut into 2.5cm / 1" cubes (Note 4)
• 30g / 2 tbsp unsalted butter , cut into 1.5 cm / 1/2″ pieces
• 1/3 cup milk , hot
• 1/8 tsp white pepper (sub black)

Topping:

• 30g / 2 tbsp unsalted butter , melted (or olive oil spray)
• 2 tbsp grated parmesan , sandy store bought type works best or grate your own
• 2 tsp finely chopped parsley for garnish , optional

Cups – Metric

Instructions

ABBREVIATED RECIPE:

• Brown mushrooms, remove, sear chicken (aggressively!) in same pan, cut into large pieces. Sauté bacon, onion and garlic, deglaze with Guinness, make roux, add stock, simmer with mushrooms to thicken (~10 min). Add chicken towards end. Pour into a baking dish, pipe on mashed potato, finish with butter and parmesan, bake 30 min.

FULL RECIPE:

• Garlic butter mushrooms – Melt 1/4 of the butter in a large 30 cm non stick pan over high heat. Add mushrooms, toss for 4 minutes until you get some browning on the surface. Add another 1/4 of the butter, melt, toss to coat. Add 1/4 tsp each salt and pepper and half the garlic, toss 30 seconds until garlic is golden – mushrooms will still be hard inside, they finish cooking later. Remove into bowl (make sure you scrape out all garlic bits).
• Sear chicken – Sprinkle the chicken with 1/2 tsp salt and 1/4 tsp pepper. In the same pan, melt another 1/4 of the butter until hot and foamy. Sear chicken 2 minutes on each side until nicely golden but inside is still raw (if they don't fit in a single layer, do in batches). Remove onto plate, once cool enough to handle cut into 2.5cm (1") pieces.
• Bacon and onion – In the same pan, add bacon and stir for 15 seconds, then add the onion (there should be enough fat from the chicken). Cook for 2 minutes until the onion edges are golden and starting to soften. Add remaining garlic and stir 20 seconds.
• Deglaze with Guinness – Add Guinness and let it simmer rapidly, scraping the base of the pan to loosen any golden bits into the liquid (“fond” = free flavour!), until the Guinness is reduced down by 75%.
• Sauce – Lower heat to medium and add remaining butter. Once melted, sprinkle flour all across the surface and stir for 1 minute – it will look pasty. While stirring, pour in half the stock. Keep stirring until the flour paste dissolves into the stock, for lump-free sauce (yay!). Then add remaining stock, water, tomato paste, 1/4 tsp salt and 1/2 tsp pepper, stir well.
• Simmer – Add the mushrooms plus all mushroom juices accumulated in the bowl into the pan. Simmer for 8 to 10 minutes or until the liquid reduces down into a fairly thick gravy and the mushrooms become soft. (Meanwhile, start the mash)
• Thicken sauce – Add the chicken (plus all juices) and simmer for another 2 to 3 minutes until the gravy is quite thick and you can draw a path on the base of the pan. (Sauce thickness now = sauce thickness once baked). Taste – add more salt if needed (I don’t).
• Assemble – Pour into a 1.5 – 2 L (6 – 8 cup) baking pan and flatten the surface. (Note 5 for other sizes)
• Preheat oven to 200°C / 390°F (180°C fan-forced).
• Duchess potato topping – Pipe swirls on the surface. My swirls have a 4cm base (1.5"), then I fill gaps with small swirls/blobs – I use all the mash! Drizzle with melted butter, sprinkle with parmesan.
• Bake for 30 minutes, rotating the pan at the 20 minute mark.
• Serve – Rest for 10 minutes, sprinkle with parsley if using. Attack!

Mashed potato:

• Make mash – Put the potatoes into a large pot of cold tap water. Bring to a boil over high heat then cook for 15 minutes until soft. Drain, pass through a potato ricer (smoother) or mash well with a potato masher in the now empty pot. Add butter, milk, 1/2 tsp salt and 1/8 tsp white pepper, stir through – it should be creamy but not loose (so it holds its form when piped).
• Piping bag – Transfer mash into a piping bag fitted with a star tip.

Notes

1. Chicken breast will also work ok here though thighs are juicier. Just cut into bite size pieces and sear the outside on high, sprinkled with the salt and pepper. Remove from pan and proceed with recipe as written.

2. Salt – Halve for fine table salt, increase salt 50% for flakes.

3. Guinness beer – Key for rich flavour in sauce despite short simmer time, so don’t skip it! Stout is also excellent. Non alcoholic beer – haven’t tried but I know 0% beer has improved drastically in recent years, so might be worth giving it a go!

Red wine (pinot, merlot, anything dry) – use 375ml / 1 1/2 cups. Sauce colour will be more like Beef Bourguignon, slightly more elegant (French!) flavour. I liked that version too but preferred Guinness (slightly richer and bolder).

4. Potatoes – Starchy potatoes work best here for fluffy insides and crispy outsides. Other starchy potatoes that work include: Dutch creams, King Edwards or red delight. Great all rounders like golden delight, coliban and red rascal are also great.

5. Pie dish – Use any you want, I was actually so tempted to make individual pies but I can’t find my large ramekins. I dream of having copper single serving size gratin dishes. 🙂 Bake time will be the same.

Leftovers will keep for 3 to 4 days in the fridge. If making ahead intentionally – fridge or freezer – make the sauce for the filling a little looser, top with mash, butter and parmesan, fully cool uncovered. Then cover and fridge/freezer (3 months). Fully thaw then bake per recipe.

Nutrition per serving, assuming 6 servings.

Nutrition

Calories: 577cal | Carbohydrates: 43g | Protein: 36g | Fat: 29g | Saturated Fat: 14g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 9g | Trans Fat: 1g | Cholesterol: 176mg | Sodium: 986mg | Potassium: 1535mg | Fiber: 4g | Sugar: 5g | Vitamin A: 633IU | Vitamin C: 15mg | Calcium: 88mg | Iron: 3mg

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