Easy Rhubarb Upside-Down Cake

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.

• Preparation Time: 15 mins
• Cooking Time: 40 mins
• Total Time: 55 mins
• Calories: 327 Calories

Ingredients

• 1 cup white sugar
• 2 tablespoons butter
• 1 (18.25 ounce) package white cake mix
• 2 cups miniature marshmallows
• 4 cups diced rhubarb
• 1 (3 ounce) package strawberry flavored Jell-O® mix

Recipe Instructions

Step 1

Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13 inch baking pan.

Step 2

Spread rhubarb in an even layer in the prepared pan. Sprinkle with sugar, then gelatin powder; spread miniature marshmallows in an even layer.

Step 3

Prepare batter according to cake mix package instructions. Spread batter on top of marshmallows.

Step 4

Bake in the preheated oven until a toothpick inserted into the center comes out clean, 40 to 50 minutes. Allow to cool.