Easy Rhubarb Upside-Down Cake

Prep time: 15 min
Cook time: 40 min
Servings: 12
Yield: 12 servings

Description

This rhubarb cake with marshmallows is a fun one to make with kids. Using fresh rhubarb, marshmallows, strawberry gelatin, and cake mix, flip the cake over so the rhubarb is on top.

Ingredients

2 tablespoons butter
4 cups diced rhubarb
1 cup white sugar
1 (3 ounce) package strawberry flavored Jell-O® mix
2 cups miniature marshmallows
1 (18 1/4 ounce) package white cake mix

Directions

1 Gather the ingredients. Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13 inch baking pan.
2 Spread rhubarb in an even layer in the prepared pan. Sprinkle with sugar, then gelatin powder; spread miniature marshmallows in an even layer.
3 Prepare batter according to cake mix package instructions. Spread batter on top of marshmallows.
4 Bake in the preheated oven until a toothpick inserted into the center comes out clean, 40 to 50 minutes. Allow to cool.