Chocolate Streusel Bars
["1 3/4 c. all-purpose flour", "1 c. sugar", "1/4 c. Hershey's cocoa", "1/2 c. (1 stick) margarine", "1 egg", "1 (14 oz.) can Eagle Brand milk", "2 c. (12 oz.) Hershey's semi-sweet chocolate chips", "1 c. coarsely chopped nuts"]
["Heat oven to 350\u00b0.", "Grease 13 x 9-inch baking pan.", "In large bowl, stir together flour, sugar and cocoa.", "Cut in margarine until mixture resembles coarse crumbs.", "Add egg; mix well. Reserve 1 1/2 cups.", "Press remaining mixture into bottom of pan. Bake 10 minutes."]
["flour", "sugar", "cocoa", "margarine", "egg", "milk", "chocolate chips", "nuts"]