Serves 4      Takes 45 minutes   1 large onion, finely chopped 500 ml vegetable stock 2 garlic cloves, sliced 2 tablespoons tomato ketchup 500g tomatoes, chopped 1 large yellow pepper, sliced 2 courgettes, sliced 1 teaspoon balsamic vinegar 4 teaspoons small capers in brine, drained 2 tablespoons chopped fresh basil, plus a few leaves to… Continue reading >