Almendrados (Flourless Almond Cookies)

Very little wheat is grown in Alicante, Spain, but almond trees are plentiful, so some of the region's traditional desserts use ground almonds instead of or in addition to the valuable flour. The almond base gives this flour-free cookie a surprisingly nutty flavor.
Preheat the oven to 350 degrees.Place 2 cups almonds in a food processor; chop until finely ground. Add the sugar, lemon zest, salt, and egg; beat 10 times or until the dough forms a ball.Shape the dough into 24 balls, about 1 tablespoon each. Place on baking sheets greased with cooking spray, 1 inch apart. Sprinkle evenly with cinnamon. Gently squeeze one whole almond into the center of each dough ball. Bake at 350 ° C for 16 minutes or until the edges are golden brown. Cool for 5 minutes on baking sheets. Remove from the pan; cool on a wire rack.