At the restaurant Marichu, we offer this sweet, liquid custard as a dessert in itself, served in small custard cups. But natillas is also used in countless Basque recipes as a sauce. Although we in the Basque Country claim this sauce as our own, the French make a similar sauce and call it crème anglaise — thereby crediting the English as its inventors.
[This is an ingredient in the recipe for Almond Tart.]