Chocolate Nut Toffee Bars

1 cup margarine or butter, softened
1 cup powdered sugar
1-1/4 cups unsifted flour
½ cup Hershey's cocoa
1 - 14 oz. can Eagle Brand Sweetened Condensed Milk
2 tsp. vanilla extract
1 cup chocolate chips
½ cup chopped nuts


Preheat oven to 350. Reserve 2 TBSP. margarine. In large mixer bowl, beat remaining margarine and sugar until fluffy. Add flour and cocoa; mix well. With floured hands, press into greased 13x9 pan. Bake 15 minutes. Meanwhile, in medium saucepan, combine reserved margarine and sweetened condensed milk; cook and stir until mixture thickens slightly, about 15 minutes. Remove from heat; stir in vanilla. Pour over crust. Bake 10 to 15 minutes longer or until golden brown. Remove from oven; immediately top with chips. Let stand 1 minute; spread while warm. Top with nuts. Cool. Cut into bars, Store covered at room temperature. Makes 24 to 36 bars.