Basic tomato sauce

Ingredients: 1kg tomatoes ¼ cup olive oil 1 large brown onion, finely chopped 3 garlic cloves, crushed 1 strip lemon rind 2 tablespoons lemon juice 1 bouquet garni (A bouquet garni is a bunch of herbs used to flavour soups and sauces. Look for them in the spice aisle of your supermarket, or you can…