Preheat oven to 350°.
Lightly spoon the flour into dry measuring cups, and level with a knife. Combine flour, sugar, 1/4 cup almonds, baking powder, and salt in a large bowl; stir well with a whisk. Combine milk, butter, amaretto, and eggs; add to flour mixture, stirring just until moist.
Spoon the batter into a 9-inch round cake pan coated with cooking spray. Sprinkle batter with remaining almonds. Bake at 350° for 30 minutes or until a wooden pick inserted in center comes out clean. Cool cake 10 minutes in pan on a wire rack. Remove from pan. Cool completely on wire rack.
Note: The Almond Cake freezes well. Bake it ahead, cool completely, and store in a freezer bag. To serve, thaw at room temperature.