1 cup vegetable shortening
1/2 cup granulated sugar
1/2 cup firmly packed brown sugar
2 large egg yolks
3 teaspoons water
1 teaspoon vanilla extract
2 cups all-purpose flour
1/2 teaspoon salt
1/4 teaspoon baking soda
1 cup semisweet chocolate chips
Preheat oven to 350*F.
Cream together shortening, sugar, and brown sugar. Blend in egg yolks, water, and vanilla. Add flour, salt, and baking soda. Add chocolate chips.
Spread evenly in a greased 9 x 9-inch baking pan and bake for 15 to 20 minutes.
Makes 16 bars.