Beat butter, sugar, vanilla extract, and almond extract with an electric mixer until thoroughly mixed. 

Add in the flour and ground almonds, and knead with your hands until fully combined.

Roll the dough into a log, wrap in plastic wrap and chill for one hour.

Preheat the oven to 350 degrees. 

Combine the powdered sugar and vanilla sugar for the topping and set aside.

Slice small sections of dough and form into crescent shapes. Place on a parchment lined cookie sheet. 

Bake 12 minutes or until cookies begin to turn a light golden color. 

Dust with sugar mixture after removing from oven, while hot.