Preheat oven to 350 F
Line 3 baking sheets with parchment paper or foil; set aside
In a large bowl, combine almonds and sugar; stir to mix well
In another bowl, whick together egg whites and almond extract until soft peaks form
Add egg whites to almond mixture
Stir to form a soft batter
With a teaspoon, spoon batter onto baking sheets, spacing cookies apart, about 12 cookies per sheet
Bake in the center of oven about 15 minutes or until lightly browned
Remove from oven and transfer parchment sheets to cooling racks until cookies begin to firm up, about 3 to 4 minutes
With a sharp knife, lift cookies from parchment and transfer to racks to cool completely