Chicken, Tomato & Herb Casserole - Tom Aikens

Ingredients

• 1 whole chicken (1.2kg), cut into 10 pieces
• 50ml vegetable oil
• 40g unsalted butter
• 4 sprigs thyme
• 2 sprigs rosemary
• 6 cloves garlic, bashed
• 2 bay leaves
• 1 tsp salt
• Large pinch black pepper
• 4 celery sticks, cut into 2cm pieces
• 1 tbsp capers
• 2 piquillo red peppers, halved
• 5 shallots, cut into 2cm pieces
• 2 onions, cut into 2cm pieces
• 1 heaped tsp plain flour
• 4 plum tomatoes, skinned, seeded, diced
• 40g tomato purée
• 1 tsp chopped tarragon
• 1 tsp caster sugar
• 250ml white wine
• 400ml chicken stock
• 1 tsp chopped thyme
• 1 tsp Herbes de Provence