Rhubarb Dump Cake is a delightful dessert that combines the tartness of rhubarb with a buttery cake-like topping. This easy recipe makes for a perfect treat for any occasion, from family gatherings to potlucks. With minimal effort and ingredients, you can create a comforting dessert that everyone will love. The unique combination of flavors makes this dish stand out, and it’s sure to become a favorite in your home.
Why You’ll Love This Recipe
- Super Easy to Make: With just five ingredients and no complicated steps, you can whip up this dessert in no time.
- Delicious Flavor: The tart rhubarb pairs beautifully with the sweetness of sugar and the richness of butter.
- Versatile Serving Options: Enjoy it warm with ice cream, or serve it cold as a refreshing treat.
- Perfect for Any Occasion: Ideal for summer picnics, holiday meals, or cozy family dinners.
- Minimal Clean-Up: One pan is all you need, making clean-up a breeze after enjoying this delicious dessert.
Tools and Preparation
To make your Rhubarb Dump Cake, gather some essential tools that will help streamline the process. These items are handy and will ensure your baking experience is enjoyable.
Essential Tools and Equipment
- 9×13 baking pan
- Mixing bowl
- Measuring cups
- Measuring spoons
- Rubber spatula
Importance of Each Tool
- 9×13 baking pan: The perfect size for evenly baking your dump cake while providing enough space for bubbling goodness.
- Mixing bowl: A sturdy bowl is essential for combining your ingredients without any mess.
- Rubber spatula: Ideal for scraping down the sides of the bowl to ensure everything is well mixed and evenly distributed.
Ingredients
This recipe could not be easier to make. It turns out more like a crisp than a cake but is heavenly with rhubarb.
For the Rhubarb Base
- 4 cups fresh or frozen rhubarb (chopped)
- 1 scant cup white sugar
For the Topping
- 1 package yellow cake mix
- 1 cup water
- 1/3 cup butter (melted)
- Cooking spray
How to Make Rhubarb Dump Cake
Step 1: Preheat the Oven
Preheat your oven to 350F. While it heats up, spray your 9×13 pan with cooking spray to prevent sticking.
Step 2: Prepare the Rhubarb
Add the chopped rhubarb into the prepared pan. Spread it out evenly across the bottom so each bite has plenty of flavor.
Step 3: Add Sugar and Cake Mix
Sprinkle the sugar over the rhubarb evenly. Next, layer on the yellow cake mix without mixing it in; this creates that lovely topping.
Step 4: Pour Water and Butter
Pour the water over everything in an even layer. Follow this by drizzling melted butter on top. Remember, DO NOT MIX!
Step 5: Bake the Cake
Place the pan in your preheated oven and bake for about 45 minutes. You’ll know it’s ready when it’s bubbling, the rhubarb is tender, and the top has turned slightly brown.
Now you’re all set to enjoy your delicious Rhubarb Dump Cake!
How to Serve Rhubarb Dump Cake
Rhubarb Dump Cake is a delightful dessert that can be enjoyed in various ways. Whether you prefer it warm or cold, there are plenty of serving options to enhance its unique flavor.
Serve with Ice Cream
- Vanilla ice cream: The creamy texture balances the tartness of rhubarb.
- Strawberry ice cream: Adds a fruity complement to the cake.
Drizzle with Sauce
- Caramel sauce: A sweet drizzle enhances the overall sweetness.
- Berry sauce: A tangy berry sauce brings an extra layer of flavor.
Top with Whipped Cream
- Fresh whipped cream: Light and airy topping to contrast the dense cake.
- Flavored whipped cream: Try vanilla or almond for a twist.
Pair with Fresh Fruit
- Sliced strawberries: Fresh berries add a refreshing touch.
- Blueberries: Their sweetness pairs well with the tart rhubarb.

How to Perfect Rhubarb Dump Cake
To ensure your Rhubarb Dump Cake is a hit, consider these helpful tips.
- Use fresh rhubarb: Fresh rhubarb provides better flavor than frozen.
- Adjust sugar levels: Depending on your taste, you may want to add more or less sugar.
- Layer evenly: Proper layering prevents the ingredients from mixing together during baking.
- Check for doneness: Look for bubbling edges and a slightly browned top as indicators of being fully baked.
- Serve warm: Enjoying it warm enhances the flavors and textures.
Best Side Dishes for Rhubarb Dump Cake
Rhubarb Dump Cake pairs beautifully with various side dishes that complement its flavors. Here are some great options:
- Vanilla Ice Cream: A classic pairing that adds creaminess and sweetness.
- Yogurt Parfait: Layer yogurt with granola and fruit for a healthy option.
- Fresh Fruit Salad: A mix of seasonal fruits brightens up the plate.
- Cheese Platter: A selection of cheeses offers contrasting flavors to the dessert.
- Pecan Pie Bars: Rich and nutty bars make for a delicious combination.
- Chocolate Mousse: Silky chocolate mousse provides a decadent finish after the cake.
Common Mistakes to Avoid
Making Rhubarb Dump Cake is simple, but there are a few common mistakes that can impact your final dish.
- Using too much sugar: While rhubarb is tart, adding excessive sugar can overwhelm the flavors. Stick to the recommended amount for a balanced taste.
- Not preheating the oven: Failing to preheat can result in uneven baking. Always ensure your oven is at 350F before you start baking.
- Mixing the ingredients: It’s tempting to stir everything together, but do not mix after pouring the water and butter. This layering creates that delicious crisp topping.
- Ignoring baking time: Every oven is different. Keep an eye on your cake as it bakes, ensuring it bubbles and the top is slightly browned for the best texture.
- Using old rhubarb: Fresh rhubarb gives the best flavor. If using frozen, make sure it’s not freezer-burned or too old to retain its taste.
Refrigerator Storage
- Store leftover Rhubarb Dump Cake in an airtight container.
- It will last up to 3 days in the refrigerator.
Freezing Rhubarb Dump Cake
- You can freeze slices of Rhubarb Dump Cake for up to 3 months.
- Use freezer-safe containers or wrap slices tightly in plastic wrap and then foil.
Reheating Rhubarb Dump Cake
- Oven: Preheat to 350F and bake for about 15-20 minutes until warmed through.
- Microwave: Heat individual portions on high for 30-60 seconds until hot.
- Stovetop: Place a slice in a skillet over low heat, covering it with a lid. Heat until warm, about 5 minutes.
Frequently Asked Questions
What is Rhubarb Dump Cake?
Rhubarb Dump Cake is a delightful dessert that combines layers of fruit and cake mix without mixing. It creates a unique texture similar to a crisp.
Can I use frozen rhubarb for Rhubarb Dump Cake?
Yes, you can use frozen rhubarb! Just ensure it’s chopped and thawed before adding it to your pan.
How to Make Rhubarb Cobbler With Cake Mix?
For a cobbler-like version, simply layer additional toppings like oats or nuts on top of the cake mix before adding water and butter.
What can I customize in my Rhubarb Dump Cake?
You can add spices like cinnamon or nutmeg for extra flavor, or mix in berries for added sweetness.
How long does it take to make Rhubarb Dump Cake?
The total time is approximately 50 minutes, which includes a quick prep time of just 5 minutes followed by 45 minutes of baking.
Final Thoughts
Rhubarb Dump Cake is an easy yet delicious dessert that’s perfect for any occasion. Its unique combination of flavors makes it versatile; you can easily customize it with spices or fruits. Give this simple recipe a try, and enjoy a delightful treat that highlights the tartness of rhubarb beautifully!
Rhubarb Dump Cake
- Total Time: 50 minutes
- Yield: Serves approximately 12 people 1x
Description
Rhubarb Dump Cake is an incredibly easy and delicious dessert that perfectly balances the tartness of rhubarb with a buttery, cake-like topping. With just five simple ingredients, this delightful treat can be prepared in minutes and baked to golden perfection. Whether you’re hosting a summer picnic, celebrating a holiday, or simply enjoying a cozy family dinner, Rhubarb Dump Cake is sure to impress. Serve it warm with a scoop of vanilla ice cream or enjoy it cold for a refreshing twist. This recipe is not only comforting but requires minimal cleanup—just one pan!
Ingredients
- 4 cups fresh or frozen rhubarb (chopped)
- 1 scant cup white sugar
- 1 package yellow cake mix
- 1 cup water
- 1/3 cup butter (melted)
Instructions
- Preheat your oven to 350F and prepare a 9×13" baking pan with cooking spray.
- Evenly spread the chopped rhubarb across the bottom of the pan.
- Sprinkle sugar over the rhubarb, then layer on the yellow cake mix without mixing.
- Pour water evenly over everything and drizzle melted butter on top—do not stir!
- Bake for about 45 minutes until bubbly and golden brown.
- Prep Time: 5 minutes
- Cook Time: 45 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 piece (approximately 145g)
- Calories: 290
- Sugar: 24g
- Sodium: 210mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 30mg




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