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Easy One-Bowl Rhubarb Upside Down Cake Recipe Perfect for Beginners

easy one-bowl rhubarb upside down cake - featured image

A simple, quick, and delicious rhubarb upside down cake made in one bowl, perfect for beginners and featuring a tangy caramelized rhubarb topping.

Ingredients

Scale
  • 3 cups (450g) rhubarb, chopped into 1/2-inch pieces
  • 1/2 cup (100g) brown sugar, packed
  • 4 tablespoons (57g) unsalted butter, melted
  • 1 1/2 cups (190g) all-purpose flour
  • 1 1/2 teaspoons baking powder
  • 1/4 teaspoon salt
  • 3/4 cup (150g) granulated sugar
  • 2 large eggs, room temperature
  • 1/2 cup (120ml) milk (whole or 2%)
  • 1 teaspoon vanilla extract

Instructions

  1. Preheat your oven to 350°F (175°C). Butter your cake pan generously to prevent sticking. Sprinkle the brown sugar evenly over the bottom of the pan, then drizzle the melted butter on top and spread gently with a spatula.
  2. Arrange the rhubarb pieces in an even layer over the brown sugar mixture. Keep the rhubarb flat and not piled up.
  3. In a large mixing bowl, whisk together the all-purpose flour, baking powder, salt, and granulated sugar until combined.
  4. Add the eggs, milk, and vanilla extract to the dry ingredients. Mix until just combined; do not overmix.
  5. Pour the batter gently over the rhubarb layer in the cake pan. Use a spatula to spread it evenly, covering all the fruit.
  6. Bake for 35-40 minutes or until a toothpick inserted in the center comes out clean and the cake edges are golden. The top (bottom in the pan) should be bubbly and caramelized.
  7. Remove the cake from the oven and let it cool for about 10 minutes. Carefully invert the cake onto a serving plate so the rhubarb topping is glossy and slightly sticky.
  8. Serve warm or at room temperature. Optionally, add a scoop of vanilla ice cream or whipped cream.

Notes

Butter the pan generously to prevent sticking and ensure easy flipping. Use room temperature eggs for better mixing and lighter texture. Do not overmix the batter to keep the crumb tender. Let the cake cool 10 minutes before flipping to avoid losing the topping. Fresh rhubarb caramelizes best and holds shape well. Frozen rhubarb can be used if thawed and drained well. For dairy-free or vegan versions, substitute butter with coconut oil, milk with plant-based milk, and eggs with flax eggs.

Nutrition

Keywords: rhubarb cake, upside down cake, one-bowl cake, easy dessert, spring dessert, summer dessert, caramelized rhubarb, beginner baking