Geeky, I know.  I found the recipe here. (no I did not make a leaf case for these.)

2 1/2 cups of flour
1 Tablespoon baking powder
1/4 teaspoon salt
8 Tablespoons cold butter
1/3 cup sugar
2/3 cup milk
1/2 teaspoon lemon extract

Preheat over to 425 degrees.

Mix flour, baking powder, and salt in a large bowl. Chop butter into mixture with a pastry cutter or knead in with your fingers until you get a crumbly mixture. Add sugar and mix. Add milk and lemon extract and stir with a fork until dough forms.

Roll the dough out about 1/2 inch thick. Cut out 3 inch squares and transfer to a cookie sheet. Criss-cross each square from corner to corner with a knife. Bake for about 12 minutes or until set and lightly golden. Makes 10 to 12.