Coronation Chicken

Serves 6: . 500 – 600 g chicken breasts, each cut in 2 or 3 pieces lengthways. 100 g onions, peeled and quartered. 20 g olive oil. 1 Tbsp curry powder. 15 g tomato purée. 80 g red wine. 10 g lemon juice. 1 bay leaf. ¼ tsp fine sea salt. ¼ tsp ground black…