Preparation:
Sift together the almond flour and powdered sugar. Mix. Add in the egg white and 1 tablespoon of water. Start by mixing with a hand blender. Eventually you can switch to kneading it with your hands. If it’s too dry, you can slowly add more water. The dough is ready when it’s uniform and soft. To make your first shape, take a ball of the dough that’s about 1 1/4″ round. Then you can make it into different shapes. Place the shapes on a cookie sheet lined with parchment paper. Turn your broiler on low. Beat the egg yolk. Brush the shapes with it. Place the cookie sheet under the broiler. Be careful! They cook very quickly. Check them every minute or two. Keep watching until they’re golden brown. Be careful not to burn them! When done, place cookies on a baking rack until cool. Place cookies in a tin to keep them fresh.