There’s something uniquely comforting about a warm, fruity dessert, and the Strawberry Rhubarb Dump Cake truly embodies that charm. With layers of tart rhubarb mingling with the sweetness of strawberry jelly, this concoction is a delightful embrace for your taste buds. The mesmerizing contrast between the soft, syrupy filling and the crumbly topping makes every bite a little celebration. Every time I whip this up, I’m reminded of sunny afternoons spent in my grandmother’s kitchen, where dessert was always a happy ending to a family meal.

This cake is not just about flavor; it’s about the joy of simplicity. With minimal fuss, you can create an impressive dessert that feels so indulgent yet is incredibly easy to prepare. Perfect for family gatherings or a cozy evening at home, the Strawberry Rhubarb Dump Cake is bound to impress! It’s time to gather your ingredients and discover the blissful deliciousness waiting to be enjoyed in this lovely cake.
Why You’ll Love This Recipe
- Simple & Quick: Easily prepared in your crockpot, this recipe takes minimal hands-on time—just about 10 minutes to prep and 2 hours to cook!
- Irresistible Flavor: The fusion of tart rhubarb and sweet strawberry jelly creates an explosion of flavor in every mouthful.
- Eye-Catching Appeal: The bubbling filling and golden topping make this dessert visually stunning, perfect for impressing guests.
- Flexible Serving: Enjoy it warm as a comforting dessert, or serve it chilled with a scoop of vanilla ice cream to elevate your snacking experience.
- Diet-Friendly Options: While this recipe is delightful as-is, you can explore gluten-free cake mixes for alternative dietary needs.
Ingredients You’ll Need
- 4 cups fresh rhubarb: Ensure it’s washed, trimmed, and cut into 1-inch pieces. Choosing fresh rhubarb will provide the best tartness. If you can’t find fresh, frozen rhubarb works in a pinch—just thaw and drain it first.
- 1 cup strawberry jelly: Using jelly instead of jam gives a smoother sauce, which beautifully mingles with the rhubarb. Feel free to substitute with raspberry jelly for a different twist!
- ½ cup salted butter: Softened to room temperature, it helps create that crumbly topping. If you prefer unsalted butter, just add a pinch of salt to the mixture.
- 15.25 oz. box yellow cake mix: This is the star of your topping! While yellow cake mix works best for flavor balance, a vanilla mix can also be used for a softer taste.
How to Make Strawberry Rhubarb Dump Cake
- Prepare your crockpot: Begin by spraying the liner of your crockpot with nonstick spray, ensuring easy cleanup and preventing sticking.
- Add the filling: In the base of your prepared crockpot, combine the fresh rhubarb and 1 cup of strawberry jelly. Stir well to make sure all the rhubarb is coated with the jelly.
- Make the crumble topping: In a large bowl, add the 15.25 oz. box yellow cake mix and ½ cup softened butter. Using a fork or your fingers, crumble the butter throughout the cake mix until it takes on a damp sand texture.
- Top the filling with the crumble: Evenly sprinkle the crumble mixture over the rhubarb and jelly to create a beautiful top layer, covering it completely.
- Cover and cook: Place the lid on your crockpot and set it to high for about 2 hours. Keep an eye on it—when the topping turns golden and the filling bubbles at the edges, it’s ready. If it still appears raw after 2 hours, you can continue cooking for another hour.
Storing & Reheating
Store any leftover Strawberry Rhubarb Dump Cake in an airtight container at room temperature for up to 2 days or refrigerate it for up to a week. For longer storage, consider freezing portions in a freezer-safe container for a maximum of 3 months. When you’re ready to enjoy it again, simply reheat in the microwave for about 30 seconds or until warmed through. Keep in mind that the texture may change slightly, but a scoop of vanilla ice cream can refresh those flavors beautifully!
Chef’s Helpful Tips
- To avoid sogginess, don’t overmix the topping; just enough mixing until the butter and cake mix are combined will yield the best texture.
- Ensure your butter is at room temperature for easy crumbling—this will lead to a better topping.
- If you’re using frozen rhubarb, make sure to drain it well to avoid excess moisture in the filling.
- Experiment with flavored jellies or even add a hint of cinnamon to the cake mix for an extra layer of flavor.
Every time I make this Strawberry Rhubarb Dump Cake, it brings back wonderful memories and a sense of warmth, perfectly fitting for any shared meal or quiet evening. It’s a joyful reminder that delicious desserts don’t need to be complicated. I encourage you to try this recipe, add your personal touch, and watch it become a staple in your house too. Enjoy those sweet moments!

Recipe FAQs
Can I use frozen rhubarb for this recipe?
Absolutely! You can use frozen rhubarb, but make sure to thaw and drain it beforehand to remove excess moisture. This will help maintain the desired texture in your dump cake.
How do I know when the dump cake is done?
Your Strawberry Rhubarb Dump Cake is ready when the topping turns a lovely golden hue, and the filling is bubbling around the edges. If unsure, a toothpick inserted into the topping should come out clean.
Can I add other fruits to this dump cake?
Definitely! Feel free to mix in other juicy fruits like blueberries, raspberries, or peaches to create a delightful medley of flavors. Be sure to adjust the sweetness depending on the fruits you choose.
How long will the dump cake last in the fridge?
When stored properly in an airtight container, your dump cake will last for up to a week in the refrigerator. Just reheat as needed for a cozy dessert!
Print
Strawberry Rhubarb Dump Cake
This Strawberry Rhubarb Dump Cake combines the tartness of rhubarb with sweet strawberry jelly, all topped with a buttery cake crumble. Perfect for a simple, homemade dessert that will delight your taste buds!
- Total Time: 2 hours 5 minutes
- Yield: 8 servings 1x
Ingredients
- 4 cups fresh rhubarb, washed, trimmed, and cut into 1-inch pieces
- 1 cup strawberry jelly
- ½ cup salted butter, softened to room temperature
- 15.25 oz. box yellow cake mix
Instructions
- Spray the liner of your crockpot with nonstick spray.
- In the basin of your crockpot, combine the fresh rhubarb and strawberry jelly. Stir well to coat the rhubarb.
- In a large bowl, combine the cake mix and softened butter. Use your hands or a fork to crumble the butter into the mix until it resembles damp sand.
- Sprinkle the cake mixture over the rhubarb and jelly, ensuring everything is covered.
- Cover and cook on high for 2 hours, or until the topping is golden and the filling is bubbly.
Notes
You can substitute other jelly if strawberry is not available.
For added flavor, consider sprinkling cinnamon over the crumble topping.
- Prep Time: 5 minutes
- Cook Time: 2 hours
- Category: Desserts
- Method: Crockpot
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 350
- Sugar: 30g
- Sodium: 200mg
- Fat: 15g
- Saturated Fat: 8g
- Unsaturated Fat: 7g
- Trans Fat: 0.5g
- Carbohydrates: 55g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 30mg






