A beautifully tangy-sweet dessert that highlights the vibrant flavor of rhubarb, this upside-down cake features a caramelized fruit topping and a soft, buttery sponge. It’s a comforting bake that looks impressive yet comes together with simple ingredients.
Rhubarb Upside-Down Cake
Why You’ll Love This Recipe
This cake strikes the perfect balance between tart and sweet. The rhubarb softens into a jammy layer as it bakes, while the caramelized base adds richness and depth. It’s a great way to use seasonal rhubarb, and the presentation—flipped to reveal a glossy topping—makes it feel special without extra effort. The texture is tender and moist, making it ideal for serving with tea or as a light dessert.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
For the topping:
3 cups fresh rhubarb, cut into 2 cm pieces
3/4 cup granulated sugar
1/4 cup unsalted butter
For the cake batter:
1 1/2 cups all-purpose flour
1 1/2 teaspoons baking powder
1/2 teaspoon baking soda
1/4 teaspoon salt
1/2 cup unsalted butter, softened
3/4 cup granulated sugar
2 large eggs
1 teaspoon vanilla extract
1/2 cup milk
Directions
Preheat your oven to 180°C (350°F). Grease a 23 cm (9-inch) round cake pan and line the bottom with parchment paper.
In a small saucepan over medium heat, melt the butter and sugar for the topping until it becomes a smooth mixture. Pour this evenly into the prepared cake pan. Arrange the rhubarb pieces evenly over the caramel mixture.
In a bowl, whisk together the flour, baking powder, baking soda, and salt.
In another large bowl, beat the softened butter and sugar until light and fluffy. Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
Add the dry ingredients to the wet mixture in batches, alternating with the milk, and mix until just combined.
Pour the batter over the rhubarb layer and smooth the top.
Bake for 40–45 minutes, or until a toothpick inserted into the center comes out clean.
Allow the cake to cool in the pan for 10–15 minutes, then carefully invert it onto a serving plate. Let it cool slightly before serving.
Servings and timing
Servings: 8 slices
Preparation time: 20 minutes
Cooking time: 40–45 minutes
Total time: about 1 hour 5 minutes
Variations
You can mix strawberries with the rhubarb for a sweeter topping. Adding a teaspoon of orange zest to the batter gives a fresh citrus note. For a slightly nutty flavor, replace a small portion of the flour with almond flour. You can also sprinkle chopped nuts like almonds or walnuts over the topping before adding the batter.
Storage/Reheating
Store the cake covered at room temperature for up to 2 days, or refrigerate it for up to 4 days. To reheat, warm individual slices in the microwave for 15–20 seconds or in a low oven until just heated through. Serve warm for the best texture and flavor.
FAQs
Can I use frozen rhubarb?
Yes, but thaw and drain it well before using to avoid excess moisture.
What does rhubarb taste like?
Rhubarb is naturally tart, similar to green apples, and becomes sweeter when cooked.
Can I reduce the sugar?
You can slightly reduce the sugar, but keep in mind it balances the tartness of the rhubarb.
Can I make this cake ahead of time?
Yes, it can be made a day in advance and stored covered.
Why is my cake soggy on top?
This can happen if too much moisture is released from the rhubarb. Make sure it’s not overly wet before baking.
Can I use a different fruit?
Yes, apples, pears, or pineapple work well as alternatives.
How do I prevent the cake from sticking?
Properly grease the pan and use parchment paper for best results.
Can I make this dairy-free?
Yes, substitute butter with plant-based butter and milk with a non-dairy alternative.
What’s the best way to serve it?
It’s delicious warm, optionally with whipped cream or vanilla ice cream.
Can I use whole wheat flour?
You can replace up to half of the all-purpose flour with whole wheat flour for a denser texture.
Conclusion
Rhubarb Upside-Down Cake is a simple yet elegant dessert that showcases the unique flavor of rhubarb in a comforting, homemade bake. With its caramelized topping and soft crumb, it’s a recipe worth making again and again, especially during rhubarb season.
