Ingredients
11/2 cups all purpose flour
1/2 tsp fine sea salt
1 stick (8 tbspns) + 5 tbspns (190 g) butter, softened but still firm
1/2 cup sugar
2 tsps pure vanilla extract (you can also use 2 seeds of 2 vanilla bean pods)
1/2 cup crystal sugar
1 egg yolk, lightly beaten
Preparation