a) Preheat your oven to 240°C/220°C fan/gas mark 9. Boil a full kettle. Halve any thick broccoli stems lengthways.

b) Heat a drizzle of oil in a large frying pan on high heat. Once hot, lay the chicken into the pan and cook until browned, 5 mins each side. Season with salt and pepper. 

c) Transfer to a baking tray. Add the broccoli alongside, drizzle with oil and season with salt and pepper.

d) Roast on the top shelf of your oven until cooked through, 10-12 mins. IMPORTANT: Wash your hands and equipment after handling raw chicken and its packaging. It's cooked when no longer pink in the middle. 

a) Meanwhile, fill a large saucepan with the boiling water and ½ tsp salt and pop on high heat.

b) Chop the potatoes into 2cm chunks (no need to peel) and add to the pan.

c) Cook until you can easily slip a knife through, 12-15 mins.. 

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

a) While the potatoes cook, peel and grate the garlic (or use a garlic press). 

b) Trim the root and dark green leafy part from the leek and discard. Halve lengthways, then thinly slice.

a) Return the (now empty) frying pan to medium heat with a drizzle of oil.

b) Once hot, add the leek and season with salt and pepper. Cook the leek until softened, 4-6 mins, stirring occasionally. add the garlic to the pan. Fry for 1 min.

c) Add the water for the sauce (see pantry for amount) and chicken stock paste. Stir and bring to the boil, then simmer until slightly reduced, 2 mins.

d) Stir through the creme fraiche and pesto, then remove from the heat.

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

b) Once the potatoes are cooked, drain in a colander and return to the pan, off the heat. Add a knob of butter and a splash of milk (if you have any) and mash until smooth.

c) Season with salt and pepper. Cover with a lid to keep warm.

a) Slice the chicken widthways and transfer to your plates.

b) Serve your mashed potatoes and roasted broccoli alongside. 

c) Spoon the creamy and pesto sauce over the chicken to finish.