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Rhubarb Dump Cake

An easy cake that starts with a cake mix and is filled with fresh sweet rhubarb and strawberry flavor. Top it off with a dollop of whipped cream for the perfect finishing touch.

Rhubarb Dump Cake

I never realized the joys of rhubarb until a few years back. We moved into our new home and smacked dab in the middle of the yard was a good size rhubarb plant.

Of course, I made cake with it. Because, well, I love cake. However, you can make a wide variety of recipes with it. Be sure to check out the photo collage at the bottom of the post of few more!

Rhubarb Dump Cake #rhubarb #cake #dumpcake #dessert #tableforsevenblog

What Ingredients are Needed for this Cake?

  • Rhubarb
  • Yellow cake mix
  • Sugar
  • Strawberry gelatin
  • Water
  • Butter

Cake Mix: Yellow, vanilla or a white cake mix will all work. You will need a standard size box ( 15-18 oz).

Strawberry Gelatin: AKA “Jell-O”. You can also use a brand equivalent . Remember, you only need the gelatin powder. Don’t prepare the box.


  • You only eat the stalks.  Not the leaves! When buying or picking, make sure the stalks are firm and crisp.
  • If the leaves are still attached, make sure they are fresh and unwilted.
  • You can store fresh rhubarb in your fridge for 3-4 days. Be sure it’s clean and it will keep well in a plastic bag.
  • For this recipe, you will need 4 cups of chopped rhubarb.

How to Make Your Rhubarb Dump Cake:

  • First, in a bowl, toss your chopped rhubarb with sugar. Let it sit for 30 minutes. Then, spread the mixture in to the bottom of a greased 9 x 13 pan.
  • Next, sprinkle the strawberry gelatin powder and dry cake mix on top.
  • Melt the butter and water and pour it on top of it all.
  • Bake it. It will be ready when the top is brown.
Rhubarb Dump Cake #rhubarb #cake #dumpcake #dessert #tableforsevenblog

More Simple Cakes to Try:

Yield: Serves: 8-10

Rhubarb Dump Cake

Rhubarb Dump Cake

Enjoy the sweet taste of rhubarb in this easy and yummy cake!

Prep Time 45 minutes
Cook Time 45 minutes
Total Time 1 hour 30 minutes


  • 1 box- yellow or white cake mix
  • 4 cups chopped rhubarb
  • 1 cup sugar
  • 1-3 oz package strawberry gelatin
  • 1 cup water
  • 1 stick butter


  1. In a bowl, toss rhubarb with sugar. Let it sit for 20-30 minutes.
  2. Preheat oven to 350 degrees. Grease a 9 x 13 baking dish.
  3. Spread rhubarb/sugar mixture on the bottom of baking dish.
  4. Then, sprinkle with strawberry gelatin and then, dry cake mix.
  5. In a saucepan, melt butter and water. Pour evenly over dry cake mix.
  6. Bake for 40-45 minutes or until brown

Nutrition Information:



Serving Size:


Amount Per Serving:Calories: 250Total Fat: 13gSaturated Fat: 8gTrans Fat: 0gUnsaturated Fat: 4gCholesterol: 31mgSodium: 127mgCarbohydrates: 34gFiber: 1gSugar: 29gProtein: 2g

All information and tools presented and written within this site are intended for informational purposes only. I am not a certified nutritionist and any nutritional information on should only be used as a general guideline. This information is provided as a courtesy and there is no guarantee that the information will be completely accurate

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