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Rhubarb Upside Down Cake

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close up shot of Rhubarb Upside Down Cake with a slice being taken out of it
Tart, sweet red rhubarb tops a deliciously moist cake to make this rhubarb upside down cake the perfect choice for a summer dessert.
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Table of Contents
  1. Rhubarb Upside Down Cake Ingredients
  2. Substitutions And Additions
  3. How To Make This Rhubarb Upside-Down Cake Recipe
  4. How To Serve This Old-Fashioned Rhubarb Cake
  5. Storing This Upside Down Rhubarb Cake
  6. Frequently Asked Questions
  7. More Recipes You’ll Love
  8. JUMP TO RECIPE

A moist vanilla cake is topped with a bright pink and red layer of sweet, tangy rhubarb in this delectable vintage rhubarb upside down cake. The tartness of the rhubarb combines perfectly with the sweetness of the cake, and we know you will love the fresh flavors of this lovely summer dessert.

close up overhead shot of Rhubarb Upside Down Cake with a slice being taken out of it

Rhubarb Upside Down Cake Ingredients

Rhubarb Upside Down Cake raw ingredients that are labeled
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This cake bursts with juicy rhubarb flavor and the caramelized topping adds a delectable crunch. The cake itself is fluffy and moist, perfectly complementing the tartness of the rhubarb.

NOTE: It is essential to make sure that you do not eat the leaves or root/bottom stem area of rhubarb as it will make you sick.

You’ll need:

  • 4 cups of rhubarb, washed, dried, and cut into ½ inch pieces
  • ½ cup of sugar
  • 1 teaspoon of cinnamon
  • 1⅓ cup of all-purpose flour
  • 2 teaspoons of baking powder
  • ⅔ cup of sugar
  • ¼ cup of salted butter, softened
  • 1 egg, room temperature
  • 1 teaspoon of vanilla extract
  • 1 teaspoon of lemon zest
  • ⅔ cup of whole milk

Substitutions And Additions

TOPPINGS: Fresh whipped cream would be delicious. You could also sprinkle coconut on your rhubarb dessert for a bit of crunch.

FRUIT: This traditional dessert can also be made with a huge variety of fresh fruit: pineapple, pear, cranberry, strawberry, blueberry, mango, plum, pumpkin, banana, peach, apple, or apricot.

How To Make This Rhubarb Upside-Down Cake Recipe

To make this cake, you’ll start with the rhubarb on the bottom of the pan. Top with the cake batter before baking. Once baked and cooled, you will flip over the cake so that the rhubarb is now on top.

STEP ONE: Preheat the oven to 350°F.

STEP ONE: Cut washed rhubarb into ½-inch pieces.

STEP THREE: Spread rhubarb pieces in a lightly greased 9-inch round pan to make an even layer in the bottom of the pan.

OUR RECIPE DEVELOPER SAYS

You can buy pre-cut parchment paper rounds to make lining the pan even easier.

You could also bake your cake in a cast iron skillet or a bundt cake pan. 

STEP FOUR: In a small bowl, mix together ½ cup sugar with the cinnamon. Sprinkle the sugar and cinnamon over the rhubarb.

sugar and cinnamon being sprinkled over rhubarb

STEP FIVE: Bake rhubarb for 15 minutes, remove, and let cool slightly.

STEP SIX: While the rhubarb is cooling, in a medium bowl, whisk the flour and baking powder together.

STEP SEVEN: In a large bowl, cream butter and the sugar using an electric mixer on medium-high speed (about 2 to 3 minutes) until light and fluffy.

butter, sugar, eggs, vanilla, milk, lemon zest mixed together in a bowl

STEP EIGHT: Add the egg, vanilla, and lemon zest to the butter mixture and mix on medium speed until blended in.

STEP NINE: Next, alternate adding the dry ingredients with the milk and mixing just until combined on low speed with each addition, raising the mixer speed toward the end if necessary as the batter thickens. Do not overmix.

PRO TIP:

Don’t over-mix the batter, or your cake will be tough and rubbery.

batter mixed together then poured over rhubarb

STEP TEN: Pour the cake batter over the rhubarb. Gently smooth the batter to cover the layer of rhubarb.

STEP ELEVEN: Place back in the oven and continue to bake the cake for 40 to 45 minutes or until the top has browned and a toothpick inserted comes out clean.

cake batter placed in a cake pan then baked and placed on a cooling rack

STEP TWELVE: Remove from the oven and run a knife around the edge of the pan to loosen it. Let the cake cool in the pan on a wire rack for 20 to 30 minutes (until you can safely touch the bottom of the pan and the bottom of the pan is just barely warm). Then place your serving platter centered on top of the cake pan and quickly invert to loosen the cake out of the pan and onto the serving plate.

STEP THIRTEEN: Serve warm with whipped cream or ice cream.

How To Serve This Old-Fashioned Rhubarb Cake

This divine homemade rhubarb upside-down cake recipe can be served in a variety of ways. It tastes amazing on its own, but there are lots of tasty topping ideas as well. Fresh whipped cream with a scoop of vanilla ice cream would be delicious.

You could also sprinkle the cake with coconut and a bit of powdered sugar before serving. 

Add a refreshing iced tea, raspberry iced tea, sweet peach iced tea, or our southern strawberry sweet tea or an iced caramel macchiato on the side.

For other delightful upside-down cakes, try our berry upside down cake and pineapple upside down cake.

Storing This Upside Down Rhubarb Cake

Proper storage ensures that your cake stays moist and retains its flavors, so let’s dive into some helpful tips.

ON THE COUNTER: You can store your cake at room temperature on the counter, covered carefully with plastic wrap, or in a cake container. If stored this way, it will last for no more than two days.

IN THE FRIDGE: If kept in the refrigerator, this easy dessert will last for about three days.

IN THE FREEZER: You can freeze your rhubarb upside-down cake. After you have flipped the cake onto a serving platter, let it cool down completely. Then, place it in the refrigerator overnight. In the morning, wrap your cake in plastic wrap and put it in a freezer bag or container.

Leave it in the freezer until you are ready to serve. When the time comes, you will want to defrost the cake in the fridge, but be sure to take the plastic off before defrosting.

close up shot of a slice of Rhubarb Upside Down Cake topped with whipped topping

The presentation of this rhubarb upside-down cake is so pretty. It tastes incredibly summery and sweet with this much-underappreciated fruit in all its lovely red and pink shades.

Take advantage of rhubarb season and use the best rhubarb upside-down cake recipe to make this amazing treat soon!

Frequently Asked Questions

What is a rhubarb upside-down cake?

Rhubarb upside-down cake is a classic dessert that features a glaze with rhubarb on the bottom of the pan with the cake on top when baking. Before serving, you flip over so the rhubarb is on the top of the cake. It’s so moist and tasty!

How do I flip the cake without making a mess?

Let your cake cool on a wire rack for about 5 minutes, then lay a flat plate over the top of the cake pan. Carefully flip the cake over onto the plate. Bang on the bottom of the pan for good measure, then lift the pan off.

Can I freeze an upside-down cake?

If you have any leftovers of this delicious cake (and I’m betting you won’t!), you can wrap the cake in plastic wrap and then store it in an airtight container in the freezer for up to 3 months.

Where can I get fresh rhubarb?

You can often find rhubarb at farmers’ markets, and if you are lucky, you can sometimes find it at the grocery store.

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close up shot of Rhubarb Upside Down Cake with a slice being taken out of it

Rhubarb Upside Down Cake

5 from 4 votes
Tart, sweet red rhubarb tops a deliciously moist cake to make this rhubarb upside down cake the perfect choice for a summer dessert.
Prep Time 15 minutes
Cook Time 1 hour
Total Time 1 hour 15 minutes
Servings 8

Ingredients
  

  • 4 cups rhubarb (washed, dried, and cut into ½-inch pieces)
  • ½ cup sugar
  • 1 teaspoon cinnamon
  • 1 ⅓ cup all-purpose flour
  • 2 teaspoons baking powder
  • cup sugar
  • ¼ cup salted butter, softened
  • 1 egg, room temperature
  • 1 teaspoon vanilla
  • 1 teaspoon lemon zest
  • cup whole milk

Instructions
 

  • Preheat the oven to 350°F.
  • Cut washed rhubarb into ½ inch pieces.
  • Spread in a lightly greased 9 inch pan to make an even layer in the bottom of the pan.
  • In a small bowl, mix together ½ cup sugar with the cinnamon. Sprinkle over the rhubarb.
  • Bake rhubarb for 15 minutes, remove and let cool slightly.
  • While the rhubarb is cooling, in a medium bowl place the flour and baking powder. Whisk together.
  • In a large bowl, cream together the sugar and the butter using a hand mixer on medium-high speed until light and fluffy, about 2 to 3 minutes.
  • Add the egg, vanilla, and lemon zest and mix on medium speed until blended in.
  • Alternate adding the dry ingredients with the milk and mixing just until combined on low speed with each addition, raising speed toward the end if necessary as the batter thickens. Don’t overmix.
  • Pour cake batter over the rhubarb. Gently smooth the batter to cover the layer of rhubarb. Place back in the oven and continue to bake for 40 to 45 minutes or until the top has browned and a toothpick inserted comes out clean.
  • Remove from the oven and run a knife around the edge of the pan to loosen it. Let the cake cool in the pan on a wire rack for 20 to 30 minutes (until you can safely touch the bottom of the pan and the bottom of the pan is just barely warm). Then place your serving platter centered on top of the cake pan and quickly invert to loosen the cake out of the pan and onto the serving platter.
  • Serve warm with whipped cream or ice cream.

Notes

  • It is very important to make sure that you do not eat the leaves or root/bottom stem area of rhubarb as it will make you sick.
  • You can buy pre-cut parchment paper rounds to make lining the pan even easier.
  • You could also bake your cake in a cast iron skillet or a bundt cake pan. 
  • Don’t over-mix the batter, or your cake will be tough and rubbery.

Nutrition

Calories: 276kcal | Carbohydrates: 50g | Protein: 4g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 38mg | Sodium: 71mg | Potassium: 338mg | Fiber: 2g | Sugar: 31g | Vitamin A: 303IU | Vitamin C: 5mg | Calcium: 130mg | Iron: 1mg
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Proudly Prepared by the Spaceships Kitchen

This recipe was developed, tested, cooked and photographed by the Spaceships Kitchen. From our dinner table to yours, we hope you think it's out of this world!

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  1. Lara says

    5 stars
    Very good. I added 2 Tablespoons of strawberry jello to the rhubarb. Gave it a very pretty color and extra flavor. Delicious. It was juicy, so I did not turn it upside down.

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