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Rhubarb Dump Cake

Rhubarb Dump Cake

  • Author: Laura
  • Prep Time: 10 minutes
  • Cook Time: 50 minutes
  • Total Time: 1 hour
  • Yield: 12 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

Rhubarb Dump Cake is a simple, rustic dessert that layers tart rhubarb, sweet cake mix, and butter for a no-fuss treat. With minimal prep and maximum flavor, it’s the perfect spring or summer dessert served warm with a scoop of vanilla ice cream.


Ingredients

Scale
  • 4 cups fresh or frozen rhubarb, chopped
  • 1 cup granulated sugar
  • 1 (3 oz) package strawberry or raspberry flavored gelatin (optional, for added sweetness and color)
  • 1 box yellow or white cake mix
  • 3/4 cup (170g) unsalted butter, melted
  • 1/4 cup water (optional, if rhubarb is very dry)

Instructions

  1. Preheat oven to 350°F (175°C) and grease a 9×13-inch baking dish.
  2. Spread chopped rhubarb evenly in the bottom of the prepared dish.
  3. Sprinkle sugar evenly over the rhubarb.
  4. If using, sprinkle gelatin over the sugar layer.
  5. Evenly distribute the dry cake mix over the top—do not mix it in.
  6. Drizzle the melted butter evenly across the entire surface of the cake mix.
  7. If the mixture looks dry, drizzle a bit of water over the top to help with moisture.
  8. Bake for 45–50 minutes, or until the top is golden and the filling is bubbling around the edges.
  9. Let cool slightly before serving. Best enjoyed warm with ice cream or whipped cream.

Notes

  • Frozen rhubarb can be used—no need to thaw.
  • Adding flavored gelatin enhances sweetness and color, but it’s optional.
  • For a crispier top, use cold sliced butter instead of melted butter.

Nutrition

  • Serving Size: 1 serving
  • Calories: 320
  • Sugar: 30g
  • Sodium: 320mg
  • Fat: 14g
  • Saturated Fat: 9g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 48g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 35mg

Keywords: rhubarb dump cake, easy rhubarb dessert, spring dessert, fruit dump cake, cake mix recipe