Makes enough batter to fill a large baking sheet (approximately12"x16")5 cups white flour
3/4 cup cornstarch or potato starch
1 cup sugar
2 cups cold butter (4 sticks)
(1-2 cups ground almonds -optional) If using 2 cups ground almonds decrease flour by about 1 cup.
Cut butter into pads. Put half the ingredients in a food processor - blend until chunks of butter are no larger than the size of a pea. Pour on cookie tray. Repeat with remaining ingredients.
Press mixture into pan firmly with hands or other flat object. Lightly score with a fork. Bake at 350º for 20 - 30 minutes until golden brown. Remove from oven and sprinkle with 3 tablespoons sugar. Cut into squares while still hot. If you forget to cut while hot, put the pan back into a hot oven until warm. Then cut into squares.
