1 box yellow cake mix
1 cup graham cracker crumbs (14 squares)
1 1/4 cups water
1/3 cup vegetable oil
1 jar (16 to 17 oz) hot fudge or chocolate topping
1 jar (7 oz) marshmallow creme
1.Heat oven to 350°F for shiny metal or glass pan (or 325°F for dark or nonsick pan). Grease bottom only of 13x9-inch pan with shortening or cooking spray. In large bowl, beat cake mix, cracker crumbs, water, oil and eggs with electric mixer on low speed 30 seconds. Beat on medium speed 2 minutes. Pour into pan.
2.Reserve 1/4 cup hot fudge topping. Drop remaining hot fudge topping by generous tablespoonfuls randomly in 12 to 14 mounds onto batter in pan.
3.Bake 40 to 46 minutes or until toothpick inserted in center comes out clean. Run knife around side of pan to loosen cake. Cool 15 minutes.