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Rhubarb Cake with Butter Sauce Recipe

4.7 from 144 reviews

A delightful Rhubarb Cake soaked with a luscious homemade butter sauce, combining tart rhubarb with a moist, tender crumb and a rich, creamy topping for a comforting dessert perfect for any occasion.

Ingredients

Scale

Cake Ingredients

  • 4 cups all-purpose flour
  • 2 cups granulated sugar
  • 4 teaspoons baking powder
  • 1/2 teaspoon salt
  • 4 cups rhubarb, diced (fresh or frozen, see notes)
  • 2 cups milk
  • 6 tablespoons butter, melted

Butter Sauce Ingredients

  • 1/2 cup (1 stick) butter
  • 1 cup sugar
  • 3/4 cup heavy cream

Instructions

  1. Prepare the oven and dry ingredients: Preheat your oven to 350° F (175°C). In a large mixing bowl, whisk together the flour, granulated sugar, baking powder, and salt until well combined.
  2. Add rhubarb and wet ingredients: Stir in the diced rhubarb, milk, and melted butter to the dry mixture. Mix gently until just combined to avoid overworking the batter.
  3. Bake the rhubarb cake: Pour the batter into a greased 9 x 13 inch baking pan. Bake for about 45 minutes or until a toothpick inserted in the center comes out clean.
  4. Cool the cake: Remove the baked cake from the oven and allow it to cool completely in the pan on a wire rack.
  5. Make the butter sauce: In a heavy saucepan, combine the butter, sugar, and heavy cream. Heat over medium heat, bringing the mixture to a boil while stirring frequently. Let it boil gently for 1 minute, then remove from heat and allow it to cool slightly.
  6. Serve: Cut the cooled cake into pieces and serve warm or at room temperature with a generous drizzle of the warm butter sauce. Reheat the sauce gently on the stove or microwave if it thickens or cools too much.

Notes

  • You can use fresh or frozen rhubarb; if using frozen, thaw and drain excess liquid before adding to the batter to avoid sogginess.
  • Ensure not to overmix the batter to keep the cake light and fluffy.
  • The butter sauce can be made ahead and stored in the refrigerator; reheat gently before serving.
  • The baking pan size affects cooking time slightly; adjust accordingly if using different sizes.

Keywords: Rhubarb Cake, Butter Sauce, Dessert, Baking, Rhubarb Dessert