Chocolate Crumb Bars

A delicate crumb base supports a chocolate filling topped with chocolate chips and butter cookie crumbs.

Ingredients
1 cup (2 sticks) butter or margarine, softened (we recommend Land O Lakes® Butter)
1 3/4 cups all-purpose flour
1/2 cup granulated sugar
1/4 teaspoon salt
2 cups (12-ounce package) Nestlé® Toll House® Semi-Sweet Chocolate Morsels, divided
1 1/4 cups (14-ounce can) Nestlé® Carnation® Sweetened Condensed Milk
1 teaspoon vanilla extract
1 cup chopped walnuts (optional)


Directions
1. Preheat oven to 350° F. Grease 13 x 9-inch baking pan.

2. Beat butter in large mixer bowl until creamy. Beat in flour, sugar and salt until crumbly. With floured fingers, press 2 cups crumb mixture onto bottom of prepared baking pan; reserve remaining mixture. Bake for 10 to 12 minutes or until edges are golden brown.

3. Combine 1 cup morsels and sweetened condensed milk in small, heavy-duty saucepan. Warm over low heat, stirring until smooth. Stir in vanilla extract. Spread over hot crust.

4. Stir nuts and remaining morsels into reserved crumb mixture; sprinkle over chocolate filling. Bake for 25 to 30 minutes or until center is set. Cool in pan on wire rack.