Congo Squares
["1 1/2 sticks butter", "1 box light brown sugar", "3 large eggs", "2 3/4 c. flour, sifted", "1 (6 oz.) pkg. chocolate chips", "1 c. chopped pecans"]
["Melt butter and add to brown sugar.", "Beat in eggs, one at a time.", "Add flour.", "Batter will be stiff.", "Stir in chocolate chips and pecans.", "Spread in a greased and floured 10 x 15-inch pan. Bake 25 minutes at 350\u00b0. Do not overcook. Use toothpick in middle to test.", "Store in plastic bag in a covered tin."]
["butter", "light brown sugar", "eggs", "flour", "chocolate chips", "pecans"]