Diamant Sablé Cookies

Name: Diamant Sablé Cookies
Ingredients: 2 sticks (8 oz, 224g) unsalted butter, softened; 1 cup (4 oz, 112g) confectioner's sugar; 2 large egg yolks; 2 teaspoons vanilla extract; 2 cups (10 oz, 280g) all purpose flour; 2 large egg whites, beaten; 1 cup crystal sugar

Buttery shortbread cookies coated with crystal sugar.

If you're not into the whole brevity thing