Make a perfect Paella

Name: Make a perfect Paella
Ingredients: 15ml butter; 30ml olive oil; 300g chorizo sausage; 12 chicken pieces; chicken stock powder for sprinkling; salt and pepper; 60ml water; 3 onions (red preferably) thinly sliced; 3-4 cloves garlic, chopped; 2 tins (410g each) chopped Italian tomatoes; 3 mixed peppers (red and yellow) sliced; pinch brown sugar; 2.5ml cayenne pepper; 10ml paprika; pinch of saffron or turmeric; 500g white rice (risotto, paella or regular); 250ml dry white wine; 500-750ml warm chicken stock kept on one side in a jug; 250ml pitted black olives; 1 handful frozen peas; 500g mixed seafood (mussels, calamari, fish) – if frozen defrost before cooking; 12-16 defrosted prawns, deveined (750g frozen prawn meat can be used); 125ml chopped fresh parsley; 1-2 lemons, cut attractively to serve