Rhubarb Upside Down Cake

Rhubarb Upside Down Cake
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Hey, my dudes!

I am so excited to share this Rhubarb Upside Down Cake with you! Spring is really springing right now. Finally, there is no snow in Stockholm and all the grocery stores are stocking one of my favorite vegetables (not a fruit, technically) – rhubarb! I seriously love rhubarb. I never had it growing up in Southern California. It wasn’t super common there, and besides, my dad hated it. I think the first time I had it was during my first spring in Sweden. It was such a revelation to me – so sour, with a subtle fruitiness. It also tastes pink, sour but pink, which I just love.

Rhubarb is fairly versatile. You can stew it, bake it, or juice it. It’s great in pies, tarts, cakes, buns, drinks, and as sorbet. It really is a springtime star. It helps that it is often the first fresh produce available in the spring here in the Nordics.

Rhubarb Upside Down Cake

I gotta tell you guys I am so proud of this upside-down cake. It took me like a week of testing to get it right. The key to this cake is the cornstarch in the bottom with the sugar and butter. Rhubarb is super juicy, and without that cornstarch, the cake becomes a goopy mess. Don’t skip the cornstarch! Also important is using the reddest stalks of rhubarb you can find. If the stalk is too green, it makes the cake look weird. The taste will be the same, but it won’t have that beautiful pink rhubarb look. Also try to get stalks that aren’t too thick. The skinnier ones make for a thinner layer of rhubarb and, in my opinion, a better balanced cake.

I decorated the cake with some cherry blossoms. I may or may not have picked these from an undisclosed location near me. You could decorate your cake with any edible flowers you like but I thought the cherry blossoms really screamed spring.

Rhubarb Upside Down Cake

Rhubarb Upside Down Cake

Rhubarb upside down cake is a delicious and colorful dessert that is perfect for springtime. The cake features a layer of sweet and tangy rhubarb, which is caramelized to perfection on the bottom of the pan. On top of that, a light and fluffy cake batter is poured, which rises beautifully in the oven. The end result is a gorgeous and delicious cake that is sure to impress your guests. Serve it warm with a dollop of whipped cream or a scoop of vanilla ice cream for a truly decadent dessert experience!

Ingredients

For the batter:

  • 120 g butter
  • 180 g AP flour
  • ½ tsp salt
  • ¼ tsp baking soda
  • ¼ tsp baking powder
  • 200 g sugar
  • 2 tsp vanilla
  • 2 eggs
  • 100 g sour cream

For the bottom:

  • 1-2 Tbsp melted butter
  • 2-3 Tbsp sugar
  • 1 Tbsp cornstarch
  • 3-5 stalks of rhubarb depends on how long/thick they are

Instructions

Prep

  • Preheat your oven to 375F/190C
  • Prep your pan by covering the bottom with a circle of parchment paper
  • Take some melted butter and brush all over the bottom and up the sides
  • Sugar the bottom generously, making sure you get sugar in the corner so the cake will have a crunchy almost caramelized edge. Try not to get it up the sides though or the cake will stick
  • Dust a thin layer of cornstarch on the bottom, I like to stay away from the edge and just put it in the middle where the rhubarb will go. Rhubarb has a lot of water in it and without this step your cake will end up very soggy
  • Cut the rhubarb into pieces. I like to do this before making the batter as it comes together so quickly. I like to cut the rhubarb a bit shorter than the pan. This way i get an almost caramelized cake edge while the middle becomes ultra moist and lush.
  • Once you have placed all the rhubarb in the pan, set to the side and get started on the batter

Cake

  • Sift together 180g flour, ½ t salt, ¼ t baking powder and ¼ t baking soda, and set to the side
  • Combine 100g of sour cream with 2 t of vanilla extract and whisk together, then set that also to the side
  • Place 120g butter and 200g sugar in the bowl of a stand mixer
  • Using the paddle attachment whip on high until light and fluffy
  • Scrape down the sides of the bowl and add 2 eggs
  • Whip again on high until even lighter and fluffier
  • Scrape down the sides of the bowl, add in half of your dries and mix on a low speed, just until combined
  • Scrape down the bowl, add in all of your liquids, and continue mixing on a low speed
  • Once incorporated, scrape down the bowl, add in rest of the dries, and continue mixing
  • I like to finish the batter by hand just so i know it is completely lump and streak free
  • Pour the batter over the rhubarb
  • Spread it out evenly so that the cake can bake evenly
  • Pop in the oven and bake for about 40-45 minutes

Finishing

  • The cake is ready when a toothpick inserted in the middle comes out clean
  • As soon as the cake is out of the oven place your serving plate on top on the cake and flip the cake out
  • Take the bottom off of the spring form pan so it can stop steaming itself and so the caramel doesn’t stick to the paper
  • Keep the sides locked though!
  • Let cool completely!
  • Serve with chantilly (vanilla ice cream would also be great) and enjoy!

Video