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Delicious rhubarb cake with butter sauce served on a plate

Old-Fashioned Rhubarb Cake with Warm Butter Sauce

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A cozy and comforting dessert featuring tangy rhubarb baked into a soft vanilla cake, topped with a warm buttery sauce.

  • Total Time: 45 minutes
  • Yield: 8 servings 1x

Ingredients

Scale
  • 2 cups fresh rhubarb, diced
  • 2 cups all-purpose flour
  • 1 cup sugar
  • 2 teaspoons baking powder
  • 1/2 teaspoon salt
  • 2 large eggs
  • 1 cup milk
  • 1 teaspoon vanilla extract
  • 1/2 cup melted butter or neutral oil
  • 1/2 cup butter (for sauce)
  • 1 cup sugar (for sauce)
  • 1/2 cup heavy cream or half and half
  • 1 teaspoon vanilla (for sauce)
  • Pinch of salt (for sauce)

Instructions

  1. Preheat the oven and grease a square pan.
  2. Mix the dry ingredients in a bowl.
  3. Add the wet ingredients and stir until just combined.
  4. Fold in the diced rhubarb.
  5. Pour the batter into the prepared pan and bake until golden.
  6. For the sauce, melt butter in a saucepan.
  7. Add sugar and cream, stir until dissolved.
  8. Simmer for a couple of minutes, then add vanilla and salt.
  9. Serve warm sauce over cake slices.

Notes

This cake can be stored at room temperature for a day or refrigerated for up to 4 days. The warm butter sauce can be reheated gently if thickened.

  • Author: vivian-brooks
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 slice
  • Calories: 350
  • Sugar: 18g
  • Sodium: 200mg
  • Fat: 15g
  • Saturated Fat: 9g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 50g
  • Fiber: 2g
  • Protein: 6g
  • Cholesterol: 60mg