How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Lemony Rhubarb Upside Down Cake?

You need 8 ingredients. The key ingredients include: 4 cups fresh rhubarb, sliced, 1 cup sugar, 4 cups miniature marshmallows, 1 (3 ounce) package lemon Jell-O gelatin, and more.

Is Lemony Rhubarb Upside Down Cake suitable as baking & desserts?

Yes, Lemony Rhubarb Upside Down Cake falls under the Baking & Desserts category and is a great choice for this type of meal.

How do I store leftover Lemony Rhubarb Upside Down Cake?

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

Lemony Rhubarb Upside Down Cake Recipe

Name: Lemony Rhubarb Upside Down Cake
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 4 cups fresh rhubarb, sliced; 1 cup sugar; 4 cups miniature marshmallows; 1 (3 ounce) package lemon Jell-O gelatin; 1 (18 ounce) package lemon cake mix; 3 eggs (or as called for by your cake mix); 1/3 cup oil (or as called for by your cake mix); 1 1/3 cups water (or as called for by your cake mix)

Bake this irresistible Lemony Rhubarb Upside Down Cake at home. Made with fresh rhubarb, sugar, marshmallows and lemon cake. Easy step-by-step instructi…

This Lemony Rhubarb Upside Down Cake relies on simple, everyday ingredients such as fresh rhubarb, sliced, sugar and miniature marshmallows. It comes together quickly and makes 4 servings, at about 492 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Lemony Rhubarb Upside Down Cake delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.

Updated Jun 30, 2026

Serves 4 Baking & Desserts

Servings: persons

4 cups fresh rhubarb, sliced
1 cup sugar
4 cups miniature marshmallows
1 (3 ounce) package lemon Jell-O gelatin
1 (18 ounce) package lemon cake mix
3 eggs (or as called for by your cake mix)
1/3 cup oil (or as called for by your cake mix)
1 1/3 cups water (or as called for by your cake mix)

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Quick Info

Servings
4 servings
Calories
492 kcal
Category
Baking & Desserts

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