Christmas Cookie Recipes Half Ways 3/4 cup shortening 1/2 cup sugar 1 1/2 cups brown sugar -- divided 2 eggs -- separated 1/4 teaspoon baking soda in 1 tablespoon water 1 teaspoon vanilla 2 cups flour 1/4 teaspoon salt 1 teaspoon baking powder 6 ounces chocolate chips Preheat oven to 350 F. Mix shortening, sugar, 1/2 cup of brown sugar, egg yolks, baking soda, vanilla, flour, salt, and baking powder until it forms a stiff dough. Pat into the bottom of a greased and floured 9 x 13 inch baking pan. Spread chocolate chips over the dough. Beat the egg whites until stiff, then add 1 cup of brown sugar and beat well. Spread over the chips. Bake 20 minutes. Cool and cut into squares.