Crêpes beurre sucre is a French dish of crêpes that have a butter and sugar filling. The preparation starts with making the crêpes. Once each individual crêpe is cooked, it is smeared with butter (typically, unsalted butter) and sugar, then folded twice to get a triangle shaped-pancake.
Variations exist. For example, some variations only have a butter filling, and the sugar is sprinkled over the folded pancake, or instead of granulated sugar, powdered sugar is used. Also, once the crêpes beurre sucre are done, they can be shortly cooked in a mixture of sugar and butter for more flavor and aroma.