Congo Bars
["1 stick margarine, melted", "1 box brown sugar", "3 eggs, added one at a time", "2 tsp. vanilla", "2 3/4 c. flour", "1 (12 oz.) pkg. chocolate chips"]
["Combine", "all ingredients together and pour into greased 9 x 11-inch pan.", "Bake at 350\u00b0 for 25 minutes."]
["margarine", "brown sugar", "eggs", "vanilla", "flour", "chocolate chips"]