Easy Rhubarb Dump Cake

This old-fashioned Rhubarb Dump Cake is sweet, tangy, and incredibly easy to make. Fresh rhubarb is layered with white cake mix, sugar, and melted butter, then baked until golden with a crisp buttery topping. It’s delicious served warm with vanilla ice cream.

Ingredients

• 5 cups fresh rhubarb, diced
• 1 box (15.25 oz) white cake mix
• 1 cup granulated sugar
• 1 cup (2 sticks) unsalted butter, melted
• 1 tsp vanilla extract (optional)

Instructions

1. Preheat the oven to 350°F (175°C).
2. Lightly grease a 9×13-inch baking dish.
3. Spread the diced rhubarb evenly in the baking dish.
4. Sprinkle the sugar evenly over the rhubarb.
5. Evenly sprinkle the dry white cake mix over the top. Do not stir.
6. Slowly drizzle the melted butter over the cake mix, covering as much of the surface as possible.
7. If using, drizzle the vanilla over the top.
8. Bake for 45–55 minutes, until the topping is golden brown and the rhubarb is bubbling around the edges.
9. Let cool for 10 minutes before serving. Enjoy warm with whipped cream or vanilla ice cream.

Prep Time

10 minutes

Cook Time

50 minutes

Total Time

1 hour

Servings

8 servings