Chicken & mushroom cobbler

Halve any larger mushrooms, then heat 1 tbsp olive oil in a large sauté pan. Fry ½ the mushrooms over a high heat for 3-4 minutes until lightly browned. Season and set aside on a plate. Repeat with the remaining 1 tbsp oil and mushrooms.

Melt the butter in the same pan and gently cook the onion with a pinch of salt for 6-8 minutes until soft, adding the garlic for the final 2 minutes. Increase the heat to high, then season the chicken and add to the pan; fry until pale golden on all sides (6-8 minutes). Stir in the flour and cook, stirring, for 2 minutes. Gradually stir in the stock until combined. Simmer gently for 10 minutes, uncovered, until the chicken is cooked through, no pink meat remains and the juices run clear. 3 Stir in the mushrooms, crème fraîche, mustard and tarragon. Season if needed, then spoon into an ovenproof dish (about 1.4 litres); set aside to cool for at least 30 minutes (cover and transfer to the fridge if cooling for any longer).

4 Preheat the oven to 200ºC, gas mark 6. For the cobbler topping, mix the flour, baking powder, salt and some black pepper in a mixing bowl. Rub in the butter with your fingertips until the mixture resembles breadcrumbs, then stir in the cheese. Add the milk and bring together with your hands into a soft dough. Briefly knead (take care not to overwork the dough), then roll out on a lightly floured surface to about 1.5cm thick. Cut into 8 rounds using a 6cm biscuit cutter, re-rolling as needed.

Top the filling with the rounds of dough. Brush the dough with beaten egg, then put the dish on a baking tray and bake for 25-30 minutes until the filling is bubbling and the top puffed and golden. Scatter over extra tarragon leaves to serve.