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Rhubarb Upside Down Cake (Gluten-Free)

By Erika in Desserts

fruit gluten-free rhubarbThis post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases.

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This light gluten-free Rhubarb Upside Down Cake is one of my family’s favorite rhubarb desserts. I love that it’s made without any refined sugar (using only maple syrup) and it’s so tasty, it never lasts for long!

I first made this delicious Rhubarb Upside Down Cake a few years ago when our neighbor gave us a whole bunch of rhubarb. I was looking for a new recipe to try and stumbled upon this recipe from the Pioneer Woman’s Tasty Kitchen site.

Rhubarb Upside down cake dessert this idea now...

I made a couple slight modifications based on what I had in my kitchen and later turned this upside down cake into a gluten-free dessert. This rhubarb cake is light and fluffy and so delicious!

It’s also fairly easy to make and only took me about 20 minutes (interrupted repeatedly by my kids too) to make it. Yes, there are a few steps to follow with this recipe but it’s not hard at all and well worth it. It’s really a wonderful way to use up rhubarb!

fresh rhubarb

You could probably turn this into other fruit varieties if you wanted to, but I haven’t yet. Maybe a strawberry upside down cake at some point. Yum!

gluten-free rhubarb upside down cake recipe

Gluten-Free Rhubarb Upside Down Cake

Rhubarb Layer Ingredients:

  • 3 Tbsp butter, melted
  • 1 Tbsp maple syrup
  • 2/3 cup + 1 1/2 Tbsp coconut or regular sugar
  • 2 cups rhubarb, chopped into small pieces

Cake Ingredients:

  • 6 Tbsp butter softened
  • 3/4 cup coconut sugar (or regular sugar)
  • 1 Tbsp maple syrup
  • 2 large eggs, separated
  • 1 Tablespoon vanilla extract
  • 1 cup + 2 Tablespoons gluten-free flour all-in-one blend (I use Bob’s Red Mill) – if your blend does not contain xanthan gum, add ½ tsp
  • 1 1/2 tsp baking powder
  • 1/2 tsp salt
  • 1/4 cup milk
  • 1/4 tsp cream of tartar

Preheat your oven to 325 degrees.
Grease and flour a 9” round cake pan.

In a small bowl, stir together 3 tablespoons melted butter, 1 tablespoon maple syrup, and ⅔ cup coconut sugar.

Pour/spoon this mixture into your greased cake pan.

Place the chopped rhubarb on top of the butter-sugar mixture in the pan. Sprinkle 1 ½ Tbsp coconut sugar on top. Set aside.

In a large bowl, cream 6 Tbsp softened butter until fluffy. Add ¾ cup coconut sugar and 1 Tbsp maple syrup and mix well for about 3 minutes.

Beat in 2 egg yolks along with 1 Tbsp vanilla extract. Set aside.

In a separate small bowl, whisk together 1 cup + 2 Tbsp gluten-free flour all-in-one blend with the baking powder and salt.

Back to the creamed butter mixture. While mixing on low speed, alternately add the flour mixture with ¼ cup milk, beating well after each addition and scraping the sides of the bowl as needed.

layout of printable recipe binder pages

Set aside again.

In a separate medium-sized bowl, beat the 2 egg whites along with ¼ tsp cream of tartar until stiff peaks form. Gradually fold the egg mixture into the batter. Do not overbeat.

The mixture should be light and fluffy at this point.

Gently spoon the batter mixture over the rhubarb in the pan.

Bake for 50-60 minutes or until the cake springs back when you lightly touch it.

Cool on a wire rack for about 10 minutes before inverting onto a serving plate.

rhubarb upside down cake dessert

Serve your Gluten-Free Rhubarb Upside Down Cake with whipped cream and enjoy!

Print

Rhubarb Upside Down Cake

gluten-free rhubarb upside down cake recipe
Print Recipe

This light gluten-free Rhubarb Upside Down Cake is a delicious rhubarb dessert. It’s made without refined sugar and is so tasty, this easy dessert never lasts long!

  • Author: Erika

Ingredients

Scale

Rhubarb Layer Ingredients:
3 Tbsp butter, melted
1 Tbsp maple syrup
⅔ cup + 1 ½ Tbsp coconut or regular sugar
2 cups rhubarb, chopped into small pieces

Cake Ingredients:
6 Tbsp butter, softened
¾ cup coconut sugar (or regular sugar)
1 Tbsp maple syrup
2 large eggs, separated
1 Tablespoon vanilla extract
1 cup + 2 Tablespoons gluten-free flour all-in-one blend (I use Bob’s Red Mill) – if your blend does not contain xanthan gum, add ½ tsp
1 1/2 tsp baking powder
1/2 tsp salt
1/4 cup milk
1/4 tsp cream of tartar
whipped cream, optional

Instructions

Preheat your oven to 325 degrees. Grease and flour a 9” round cake pan.

In a small bowl, stir together 3 tablespoons melted butter, 1 tablespoon maple syrup, and ⅔ cup coconut sugar. Pour/spoon this mixture into your greased cake pan.

Place the chopped rhubarb on top of the butter-sugar mixture in the pan. Sprinkle 1 ½ Tbsp coconut sugar on top. Set aside.

In a large bowl, cream 6 Tbsp softened butter until fluffy. Add ¾ cup coconut sugar and 1 Tbsp maple syrup and mix well for about 3 minutes. Beat in 2 egg yolks along with 1 Tbsp vanilla extract. Set aside.

In a separate small bowl, whisk together 1 cup + 2 Tbsp gluten-free flour all-in-one blend with the baking powder and salt.

Back to the creamed butter mixture. While mixing on low speed, alternately add the flour mixture with ¼ cup milk, beating well after each addition and scraping the sides of the bowl as needed. Set aside again.

In a separate medium-sized bowl, beat the 2 egg whites along with ¼ tsp cream of tartar until stiff peaks form. Gradually fold the egg mixture into the batter. Do not overbeat. The mixture should be light and fluffy at this point.

Gently spoon the batter mixture over the rhubarb in the pan.

Bake for 50-60 minutes or until the cake springs back when you lightly touch it. Cool on a wire rack for about 10 minutes before inverting onto a serving plate.

Serve with whipped cream (optional)

 

gluten-free rhubarb upside down cake

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    Filed Under: Desserts, Recipes Tagged With: fruit, gluten-free, rhubarbPublished on July 10, 2018

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    About Erika

    Erika Bragdon is a second-generation homeschooling mom with 3 kids at home and 1 in college. She enjoys her chickens, goats, and gardening on a small farm in New Hampshire, and is passionate about sharing flower essences and more ways to renew body, mind, and soul with moms.

    Comments

    1. Xenia @ Thanks, Mail Carrier says

      September 29, 2011 at 11:27 pm

      I don’t think I’ve actually ever cooked with rhubarb before… I’ll have to try it sometime because this looks pretty tasty!

      Reply
    2. Tabby Giant says

      October 13, 2011 at 6:30 am

      Gosh! This looks really nice. I will make do with it even without custard. Thanks for the recipe, I hope I can find the ingredients on our local grocery.

      Reply
    3. Doll Cottage says

      October 17, 2011 at 11:48 am

      Great recipe! Thank you for sharing it with us! I will definitely try it out!

      Reply
    4. Mary Dailey says

      December 2, 2011 at 3:03 pm

      I know this would be delicious! I never had rhubarb in my life, not a southern thing, I guess, and I had strawberry rhubarb pie and loved it! I will have to try this.

      Reply
    5. Rita Spratlen says

      April 30, 2012 at 7:43 pm

      This one sounds interesting. I don’t think I have ever had rhubarb. I have seen it which it reminds me of red celery. Thanks for sharing.

      Reply
    6. Alene says

      July 5, 2019 at 9:29 pm

      This was positively delicious! I made it today, and you would never know it was gluten free. I used everything you indicated, including the Bob’s Red Mill 1 to 1 flour which I already had opened in my pantry. That was a plus, as well as using up a large bunch of rhubarb that I had in the refrigerator drawer. I didn’t have cream of tartar though, and after reading about it, I felt I could skip it. The cake came out perfectly without it. Thank you for an easy wonderful recipe that I will make over and over, but maybe with different fruits when rhubarb season ends.

      Reply
      • Erika says

        July 9, 2019 at 2:26 pm

        Thanks for the kind words, Alene. I’m so glad you enjoyed this! Great tip on the cream of tartar. I will test it out without it and see if that’s a good change to make. (I won’t say no to an excuse to make this again!)

        Reply

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