Grind the almonds and the vanilla bean in a blender or food processor. Mix all ingredients together in the order they are given. Shape cookie dough into half moons and place on un-greased cookie sheet. Bake for 1 hour in a 250 degree preheated oven. Let set over night and then roll them in powdered sugar. * You can replace vanilla bean with 1 teaspoon (or more to taste) of pure vanilla (extract). You do not need to add it to the ground almonds, just add it to your mix.