Lulu Fraise cookies, also known as LU La Barquette Fraise, are a French snack made of a soft, boat-shaped biscuit filled with strawberry purée. They are known for having a sweet, fruity flavor and are popular as a snack, tea time treat, or light dessert. The cookies are made with ingredients like wheat flour, eggs, apricot purée, and no artificial colors or preservatives.