18.5 oz. pkg. lemon cake mix (without pudding)
14 oz. can sweetened condensed milk
6 oz. can frozen lemonade concentrate (thawed and undiluted)
8 oz. container frozen whipped topping (thawed)
1 tbsp. lemon juice
3 drops yellow food color (optional)
lemon slices

Prepare cake mix according to package directions; pour batter into greased and floured 13 x 9 x 2 inch baking pan. Bake at 350 degrees for 30 to 35 minutes or until a wooden pick inserted in center comes out clean. Cool in pan 10 minutes; remove from pan, and let cool completely. Split cake horizontally into 2 layers; set aside. Combine remaining ingredients except lemon slices; blend well. Spread between layers and on top and sides of cake. Keep refrigerated. To serve, garnish with lemon slices, if desired. Yield: 15 to 18 servings.