Mom's Strawberry Rhubarb Upside-Down Cake

This rhubarb upside-down cake with strawberry Jell-O and mini marshmallows is easy to make with a cake mix. Serve chilled with whipped cream.

• Preparation Time: 15 mins
• Cooking Time: 60 mins
• Total Time: 1 hr 15 mins
• Calories: 221 Calories

Ingredients

• 1 cup white sugar
• 1 (18.25 ounce) package yellow cake mix
• 3 cups miniature marshmallows
• 1 (3 ounce) package strawberry flavored Jell-O®
• 5 cups chopped fresh rhubarb

Recipe Instructions

Step 1

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

Step 2

Stir rhubarb, marshmallows, sugar, and Jell-O mix together in a large bowl. Spread evenly in the prepared pan. Mix cake batter according to package directions; pour evenly over ingredients in the pan.

Step 3

Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 1 hour. Run a knife around outer edges of cake to loosen; turn out onto a large plate while still hot. Let cake cool before serving.