"A fun summer cake for kids to help make, using fresh rhubarb, strawberry gelatin, marshmallows and cake mix. When you cut it and take it out of the pan, flip the piece over so the rhubarb is on top."
1Preheat oven to 350 degrees F (175 degrees C). Spread butter in the bottom of a 9x13 inch pan.
2Spread the rhubarb in an even layer on the bottom of the pan. Sprinkle with sugar, and then with the strawberry gelatin mix. Cover with an even layer of miniature marshmallows. Prepare the cake mix according to package instructions. Spread on top of marshmallows.
3Bake in the preheated oven for 40 to 50 minutes, or until a toothpick inserted into the center of the cake comes out clean. Allow to cool.