Tomatoes are cooked until soft, then whizzed with the tomato cooking juice and serrano peppers, then cooked down with fried onions until flavourful, juicy and delicious. Serve as a dip or spoon it over chicken. Salsa Roja Mexicana Prep time: 20 mins Cook time: 20 mins Total time: 40 mins Serves: 6 Ingredients 6 large Tomatoes 2 Serrano peppers,