Chop rhubarb, spread evenly over greased sheet cake pan. Sprinkle sugar over rhubarb, ... marshmallows over Jello. Mix cake mix as box directs. ... topped with Cool Whip.
Mix first four ingredients and place in 9 by 13 pan. Mix yellow cake mix as directed on package. Place over rhubarb mixture in pan. Bake as ... cream or Cool Whip.
Bake at 350 degrees. Grease ... inch pan. Combine cake mix, water, oil and eggs ... pan. Top with rhubarb. Sprinkle with sugar. Pour ... in refrigerator. 12 servings.