4 chicken breasts, bone in (available from your local butcher)
4 sprigs thyme
4 knobs butter
½ lemon, juice only
4 tbsp frozen peas
knob of butter
sea salt and white pepper
pea shoots, to serve
For the chorizo crumb
2 tbsp brown sugar
1 tsp Five-spice powder
80g/3oz chorizo, finely chopped
¼ roasted red pepper, finely chopped
For the sauce
50g/1¾oz Parmesan, grated
6 free-range eggs, beaten
50ml/2fl oz double cream
1 tsp truffle oil
3 pinches white pepper
To make the chicken, blitz the vegetable oil, thyme and 2 garlic cloves in a blender. Season the chicken breasts with salt and white pepper and rub with the marinade. Cover and leave to marinate in the fridge for 2 hours or, preferably, overnight.
Preheat the oven to 220C/200C Fan/Gas 7.
Put the walnuts, brown sugar, five-spice powder and 100ml/3½fl oz water into a small ovenproof dish and mix well. Roast for 8 minutes, then remove from the oven mix well and return to the oven until the walnuts are caramelised and slightly charred.
Leave the walnuts to cool, then grind into a powder in a spice grinder or coffee grinder and set aside.
To make the sauce, mix together the ingredients in a bowl. Heat in a saucepan and cook gently, whisking constantly, until the sauce thickens. Set aside and keep warm.
Put the chorizo in a cold frying pan over a high heat. Slowly fry until all the oil has rendered, then drain on kitchen paper. Mix with the peppers and walnut powder.
Reduce the oven to 200C/180C Fan/Gas 6. Heat the oil in an ovenproof frying pan. Cook the chicken breasts skin side down, until the skin is golden. Add the remaining garlic cloves, thyme and butter. When the butter is foaming, squeeze in the juice from the lemon and baste the chicken for 1 minute, then transfer to the oven for 15 minutes, or until cooked through.
Bring a small saucepan of water to the boil and drop in the peas. Bring the pan back to the boil and cook for 30 seconds. Drain the peas and return to the pan. Stir in the butter and season with salt and pepper.
Drizzle serving plates with a generous amount of the Parmesan sauce. Cut the chicken breasts in half and arrange on top. Spoon over the peas and sprinkle with the chorizo crumb. Garnish with the pea shoots and serve.