Gachas is an ancient, traditional Spanish dish consisting of a few basic ingredients: flour, water, salt, olive oil, and garlic. In the past, it was a staple dish among shepherds and farmers, but today it is popular throughout the country. Its texture can vary from soup-like to pie-thick with a golden-brown crust, depending on the method of preparation.

The dish is served warm, and some cooks like to add saffron, paprika, or fried onions in order to improve the flavors.