white chocolate rhubarb dump cake on a rustic wooden table

Rhubarb dump cake

white chocolate rhubarb dump cake

By:

WordofMany

Published:

30 Sept 2025

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I’ll never forget the first time I tried rhubarb. My grandma had a massive rhubarb plant in her garden, and she would always bake something with it every spring. Most of the time it was rhubarb pie, a family favourite, but one year she tried something new – a rhubarb dump cake! It was surprisingly delicious, especially with a scoop of vanilla ice cream melting on top. She used a different recipe, but I wanted to make my own version using white chocolate. It is just devine! And this recipe is just so gosh darn easy its ridiculous, no need for fancy equipment or techniques here.
close up of a slice of white chocolate rhubarb dump cake with vanilla ice cream
If you're not familiar with dump cakes, they're exactly what they sound like: you dump all the ingredients into a baking dish and bake! It’s perfect for those days when you want a homemade dessert without all the fuss. This particular recipe combines the tartness of rhubarb with the smooth sweetness of white chocolate chips, creating a flavor combination that's both comforting and refreshing. The buttery cake topping adds a delightful crunch that contrasts beautifully with the soft, fruity base. Honestly I think you will really enjoy this one. What does this mean for you? A delicious cake with only a little time spent!
ingredients for white chocolate rhubarb dump cake arranged on a kitchen counter

Required Equipments

  • 9x13 inch Baking Dish
  • Large Mixing Bowl
  • Measuring Cups
  • Measuring Spoons
  • Oven
  • Spatula

White Chocolate Rhubarb Dump Cake: Frequently Asked Questions

White Chocolate Rhubarb Dump Cake

This White Chocolate Rhubarb Dump Cake is a delightful spring dessert that combines tart rhubarb with sweet white chocolate for an easy and comforting treat. Simply dump, bake, and enjoy this fuss-free cake!

⏳ Yield & Time

Yield: 12 servings

Preparation Time: 10 minutes

Cook Time: 50 minutes

Total Time:

🍽 Ingredients

📖 Instructions

  1. Preheat your oven to 350°F (175°C). Make sure the rack is in the center position. I always preheat my oven 15 minutes before hand to ensure it reaches the proper temperature.
  2. Grease a 9x13 inch baking dish with butter or cooking spray. This prevents the cake from sticking and makes it easier to serve.
  3. In the baking dish, evenly spread the diced rhubarb. If the rhubarb is particularly thick, you might want to chop it into smaller pieces to ensure it cooks evenly.
  4. Sprinkle the white chocolate chips evenly over the rhubarb. Don't be shy with the white chocolate; it balances the tartness of the rhubarb perfectly.
  5. In a large bowl, combine the dry cake mix with the melted butter. Stir until the mixture resembles coarse crumbs. It should be evenly moistened.
  6. Evenly sprinkle the cake mix mixture over the rhubarb and white chocolate chips. Try to cover the entire surface as evenly as possible.
  7. Gently press down on the cake mix topping to help it adhere slightly to the rhubarb and chocolate chips. This will help create a cohesive cake as it bakes.
  8. Bake for 45-50 minutes, or until the top is golden brown and the rhubarb is tender. Keep an eye on it; baking times can vary depending on your oven.
  9. Let the cake cool slightly before serving. This allows the flavors to meld together and the cake to set up a bit.
  10. Serve warm, with a scoop of vanilla ice cream or a dollop of whipped cream. A sprinkle of powdered sugar adds a nice touch too!

📝 Notes

  • Feel free to add a pinch of cinnamon to the cake mix for extra flavor.
  • If you don't have white chocolate chips, you can use chopped white chocolate.
  • Store leftovers in an airtight container in the refrigerator for up to 3 days.

🍎 Nutrition

Calories: 280 kcal

Protein: 3 g

Fat: 14 g

Carbohydrates: 35 g

Fiber: 1 g

Calcium: 50 mg

Sometimes, the simplest desserts are the most comforting. Baking with seasonal ingredients always brings a special kind of joy.

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