Grind almonds to a fine meal in a food processor. Add the sugar and process for another 15 seconds. Add egg whites and almond extract and continue to process until a smooth dough forms around the blade.

Place rounded teaspoonfuls of dough on prepared cookie sheet, at least 1/2 inch apart. Bake for 20 to 30 minutes or until golden. Allow cookies to cool completely on the parchment before removing. Store in an airtight container.