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Baked Rosemary Chicken and White Wine & Leek Sauce

Baked Rosemary Chicken and White Wine & Leek Sauce

with Mustard Butter Peas and Potatoes
Recipe Development Team
Recipe Development TeamUpdated on March 06, 2026
Calories
634 kcal
Protein
41.3g protein
Total
25 minutes
Difficulty
Medium
Allergens:
  • Milk
  • Mustard
  • Milk
  • Mustard
  • Soya
  • Sulphites
  • Wheat
  • Barley
  • Celery
  • Cereals containing gluten
  • May contain traces of allergens
Produced in a facility that processes eggs, milk, fish, peanuts, sesame, shellfish, soy, tree nuts, and wheat.
serving amount

2 unit(s)

Skin-On British Chicken Breasts

350 grams

Salad Potatoes

1 sachet(s)

Dried Rosemary

1 unit(s)

Leek

2 unit(s)

Garlic Clove

1 sachet(s)

White Wine Stock Powder

(May contain traces of: Milk, Mustard, Soya, Sulphites, Wheat, Barley, Celery, Cereals containing gluten)

75 grams

Creme Fraiche

(Contains: Milk)

120 grams

Peas

10 grams

Wholegrain Mustard

(Contains: Mustard)

Not included in your delivery

125 milliliter(s)

Water for the Sauce

20 grams

Butter

1 tbsp

Honey

Energy (kJ)2652 kJ
Energy (kcal)634 kcal
Fat27 g
of which saturates14.4 g
Carbohydrate59.3 g
of which sugars16.9 g
Dietary Fibre10.9 g
Protein41.3 g
Salt2.8 g
Potassium1006.3 mg
Calcium51.3 mg
Iron1 mg
Always refer to the product label for the most accurate ingredient and allergen information.
Pan
Kettle
Large Saucepan
Baking Tray
Garlic Press
Colander
Lid

Instructions

Get Started
1

a) Preheat your oven to 240°C/220°C fan/gas mark 9. Boil a full kettle.

b) Heat a drizzle of oil in a large frying pan on high heat. Once hot, lay in the chicken, skin-side down. Season with salt and pepper. Fry until golden, 3-4 mins. TIP: Notice a stronger smell from your chicken? Don’t worry, this is normal due to packaging we use to keep it fresh. IMPORTANT: Wash your hands and equipment after handling raw chicken and its packaging.

c) Meanwhile, fill a large saucepan with the boiling water from your kettle and return to the boil with ½ tsp salt.

d) Quarter the salad potatoes (no need to peel) and add to the pan. Cook until tender, 12-15 mins. 

Roast the Chicken
2

a) Once the chicken is golden, turn and cook for 1 min on the other side.

b) Transfer the chicken to a large baking tray, skin-side up.

c) Sprinkle over the rosemary, then roast on the top shelf of your oven until cooked, 10-12 mins. Set the pan aside. IMPORTANT: The chicken is cooked when no longer pink in the middle.

d) Meanwhile, trim the root and dark green leafy part from the leek and discard. Halve lengthways, then thinly slice.

Fry the Leek
3

a) Return the (now empty) chicken frying pan to medium heat. Add a drizzle of oil if the pan is dry.

b) Once hot, add the leek and season with salt and pepper. Cook the leek until softened, 4-6 mins, stirring occasionally.

c) Meanwhile, peel and grate the garlic (or use a garlic press).

d) Once the leek has softened, add the garlic and fry for 1 min more.

Finish the Sauce
4

a) Next, stir in the water for the sauce (see pantry for amount) and white wine stock powder. Bring to the boil, then lower the heat and simmer until slightly reduced, 1-2 mins.

b) Mix in the creme fraiche, then remove from the heat. Taste and season with salt and pepper if you feel it needs it. 

c) Once the potatoes are cooked, add the peas to the saucepan and cook for 1 min more. 

d) Drain well in a colander and return to the pan, off the heat. Cover with the lid to keep warm.

Finish Up
5

a) When the chicken is almost cooked, gently reheat the sauce. Add a splash of water if it's a little thick.

b) Season the cooked peas and potatoes with salt and pepper

c) Stir the wholegrain mustard (add less if you'd prefer things milder) and butter (see pantry for amount) into the potatoes.

d) Once the chicken is cooked, drizzle over the honey (see pantry for amount) and turn to coat.

Serve
6

a) Once cooked, cut the chicken widthways into 2cm thick slices, then transfer to your plates.

b) Spoon the leek sauce over the chicken.

c) Serve the peas and potatoes alongside.

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