A cookie bar with a shortbread crust and a chocolate filling topped with walnuts.

Nutty Chocolate Bars

2 cups all-purpose flour
1/2 cup granulated sugar
1/2 cup butter or margarine
Aluminum foil
1/4 cup butter or margarine
4 ounces sweet baking chocolate
1 cup light corn syrup
1/2 cup granulated sugar
3 large eggs
1 1/2 teaspoons vanilla extract
1 1/2 cups walnuts, chopped

1. Combine flour and sugar. Cut in 1/2 cup butter until the mixture resembles coarse crumbs. Press firmly into the bottom of a greased, aluminum foil lined, 13 x 9-inch baking pan.
2. Bake for 20 minutes at 375°F (190°C).
3. Meanwhile, microwave 1/4 cup butter and sweet baking chocolate on HIGH until melted, about 1 1/2 minutes. Stir until smooth, add light corn syrup, sugar, eggs, and vanilla. Pour over the crust. Sprinkle the top with chopped walnuts.
4. Bake for an additional 30 minutes, or until the filling is set. Cool in the pan before cutting.

Makes 16 bars.