Strawberry Rhubarb Dump Cake Recipe
There’s nothing like a Strawberry Rhubarb Dump Cake to kick off the summer dessert season. This delightful and simple recipe combines the tartness of rhubarb with the sweet flavor of strawberries, creating a mouthwatering treat perfect for any occasion.

| Prep Time | Cook Time | Servings | Prep Level |
|---|---|---|---|
| 15 minutes | 45 minutes | 6-8 | Beginner + |
Important Information About the Recipe
- The combination of tart rhubarb and sweet strawberries is an irresistible combination.
- It’s straightforward to make and perfect for when you need a quick dessert.
- This recipe requires simple ingredients and minimal effort yet delivers maximum flavor.
This is the ultimate guide to making the perfect strawberry rhubarb dump cake! Whether you’re a seasoned baker or a novice in the kitchen, I’ve got you covered with clear, step-by-step instructions, a detailed ingredient list, and helpful tips to ensure your strawberry rhubarb dump cake turns out delicious every time.

Ingredients
- Rhubarb
- Strawberries
- Sugar
- Cinnamon
- Yellow cake mix
- Butter
A full printable recipe card with measurements and instructions is at the bottom of the post.
Want to add some homemade ice cream to the top? Try this decadent Vanilla Ice Cream from Cooking with Carlee. You’ll love it!
How To Make Strawberry Rhubarb Dump Cake


Start by dicing the rhubarb and strawberries and add them to a large bowl.


Add the sugar and cinnamon and toss until the strawberries and rhubarb are coated. Let it sit in the refrigerator for about 30 minutes. After it sits, spread it out in a greased 9×13-inch baking dish.


Sprinkle the cake mix on top. Slice the butter into thin pieces and place it all over the cake.
Bake the cake at 350 degrees for 45 minutes or until the top is golden brown.

Let the cake cool for about 10 minutes and serve while warm.

You can add a scoop of vanilla ice cream on top of the dump cake! Or, you can top it with whipped cream or Cool Whip for a fun dessert.
Ingredient Substitutions and Adding Variety
- Frozen Rhubarb: If fresh rhubarb is out of season, you can use frozen rhubarb. Make sure to let it thaw in the refrigerator first.
- Different Cake Mixes: Use a white cake mix instead of the standard yellow cake mix.
- Mixing Fruits: Include other fruits like peaches, blueberries, or raspberries for a different flavored cake.
- Citrus Zest: For a zesty twist, add a bit of lemon or orange zest to the fruit mixture.
- Fresh Herbs: Incorporate fresh herbs like mint or basil to add a refreshing flavor to the dump cake.
Storage Instructions
- Refrigeration: Keep the cake in an airtight container for up to a week in the refrigerator.

If you love this dump cake, you will love this strawberry rhubarb pie with a scoop of vanilla ice cream on top.



Tried this but used a little less rhubarb, because that’s what I had, and used frozen strawberries and added a little more. Melted the butter and poured it on. It is SO YUMMY that we can’t stay out of it. Made it yesterday and there’s only 3 of us and it’s almost gone. Good ob its own, also good with a little vanilla ice cream. Thank you for this recipe. So easy and so good.
That’s great to hear! I love that!