Preheat the oven to 350 degrees F.
In a mixing bowl, combine almond flour, powdered sugar, coconut flakes, and flour.
In another mixing bowl, whip the egg whites to soft peaks and add the sugar. Whip to medium peaks. Gently fold in the dry ingredients.
Spoon the mixture into a pastry bag set with plain tip. Pipe into rings on a parchment-lined baking sheet, and bake until golden brown, about 15 minutes.
Recipe courtesy of David Marcelli