Fillet Steak and Creamy Mushroom Sauce

Meanwhile, pour the boiled water for the stock (see pantry for amount) into a measuring jug with the chicken stock paste and garlic. Stir to combine.

Once browned all over, transfer the potatoes to an ovenproof dish, cut-side up, pouring over the melted butter from the pan. Pour in the chicken stock from your measuring jug. TIP: The potatoes should fit snugly in the dish and the stock should cover the potatoes by three quarters - add a splash more water if needed.

When the oven is hot, cook on the top shelf until the potatoes are tender and you can easily slip a knife through, 25-30 mins.

Pop the (now empty) frying pan back on high heat (no need to wash).

Pour in the water for the sauce (see pantry for amount) and bring to the boil.

Once boiling, stir in the wild mushroom paste until well combined. Simmer until thickened enough to coat the back of a spoon, 1-2 mins.

Stir in the creme fraiche, bring back to the boil, then remove from the heat. Taste and season with pepper if needed.

Meanwhile, heat a drizzle of oil in another large frying pan on high heat. Season the steaks with salt and pepper.

Once hot, lay the steaks into the pan and fry until browned, 1-2 mins on each side.

Lower the heat to medium and cook for another 2-3 mins on each side if you want them medium-rare. TIP: Cook for 1-2 mins extra on each side if you like it more well done.

Once cooked, transfer to a plate, cover and allow to rest. IMPORTANT: Wash your hands and equipment after handling raw meat. The steak is safe to eat when the outside is browned.

Pop the (now empty) steak pan back on high heat with a drizzle of oil. TIP: Discard any tough stalks from the cavolo nero.

Once hot, add the cavolo nero and a splash of water. Cover until wilted, 3-4 mins.

Once cooked, taste and season with salt and pepper.