Low Fat Popcorn Cookies 3 cups popped popcorn unsalted 2 egg whites 1/4 cup sugar 1/4 tsp cinnamon 1/4 tsp salt 1 tsp vanilla Preheat oven to 325 degrees F. Grind the popcorn in a blender at low speed until a fine powder. In a medium bowl, beat the egg whites on high speed until soft peaks form; add the sugar; beat until egg whites are stiff, then beat in cinnamon, salt and vanilla. Gently fold in the ground popcorn Place rounded tablespoonfuls onto a greased baking sheet. Bake for 10 to 12 minutes or until cookies are lightly browned