Mix all ingredients, adding seasonings last, in a blender. Mix for desired thickness. Salsa will keep for a week refrigerated in a closed container. use glass jars or plastic containers. NOTES : Salsa is as common on Mexican tables as salt and pepper is! It is used for breakfast dishes, lunches and dinner dishes. Salsa is a combination of chiles and spices. It can be thick or thin, hot and spicy or mildly tasty. Here is a recipe for every day salsa used much in the authors house.