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Pan with rhubarb cake in it with a spoonful taken out of the cake.
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4.91 from 96 votes

Rhubarb Dump Cake

Be sure to share this simple dump and go "no sugar added" rhubarb dump cake with everyone who has rhubarb in the garden! It's a great way to use it up whether it's fresh or frozen.
Prep Time10 minutes
Cook Time1 hour
Total Time1 hour 10 minutes
Course: Dessert Recipes
Cuisine: American
Servings: 10 servings
Calories: 329kcal
Author: Laura

Ingredients

  • 4 cups chopped rhubarb fresh or frozen, if using frozen do not thaw!
  • 3 ounce Strawberry Jello or use ANY flavor you like
  • 1/2 cup sugar optional, see notes for more info!
  • 16 ounce yellow or white cake mix I used a Duncan Hines yellow cake
  • 1/2 cup butter melted
  • 1 cup water

Instructions

  • preheat the oven to 350°
  • layer the rhubarb in the bottom of a 9x13 pan, if it's frozen do not thaw it, just let it thaw enough to break apart
  • sprinkle the Jello over the top
  • sprinkle the dry cake mix over the Jello
  • pour the melted butter on top of the cake mix
  • and drizzle the water over the top of everything
  • bake in the preheated oven 55-60 minutes or until the top is set in places and the fruit is bubbling hot
  • cool a little before serving, this doesn't cut like a cake so be ready to scoop it up!

Notes

Recalculated Nutrition Facts 8/30/2024 to correct an error. When the recipe was transferred between recipe cards, the ingredients were not coming over with the right information. 
This is a No Sugar Added Recipe, if you WANT it sweeter add up to a cup of sugar to the layers between the Jello and the Cake mix, don't stir it in, just sprinkle it over
With JUST the jello the tangy rhubarb comes through, with sugar it is sweeter!

Nutrition

Serving: 1serving | Calories: 329kcal | Carbohydrates: 57g | Protein: 3g | Fat: 11g | Saturated Fat: 7g | Polyunsaturated Fat: 0.5g | Monounsaturated Fat: 3g | Trans Fat: 0.5g | Cholesterol: 24mg | Sodium: 446mg | Potassium: 165mg | Fiber: 1g | Sugar: 37g | Vitamin A: 333IU | Vitamin C: 4mg | Calcium: 141mg | Iron: 1mg