Easy Rhubarb Upside Down Cake

Total Time
1hr 20mins
Prep 20 mins
Cook 1 hr

A easy delicious cake/dessert.

Ingredients Nutrition

  • 1 (18 ounce) package lemon cake mix or 1 (18 ounce) package white cake mix
  • 3 eggs (or as called for by your cake mix) or 3 egg whites (or as called for by your cake mix)
  • 13 cup oil (or as called for by your cake mix)
  • 1 13 cups water (or as called for by your cake mix)
  • 4 cups rhubarb, cut up 1/2 inch pieces
  • 6 teaspoons minute tapioca
  • 1 12 cups sugar
  • 1 (3 ounce) package strawberry Jell-O gelatin dessert or 1 (3 ounce) package raspberry Jell-O gelatin


  1. Preheat oven to 350 degrees.
  2. Grease 9x13inch pan.
  3. Mix together Rhubarb, tapioca, sugar and package of DRY jello (NO WATER) and pour into prepared pan.
  4. Prepare cake mix according to package directions and pour over Rhubarb mixture.
  5. Bake 1 hour.
  6. Serve with whipped cream.
Most Helpful

5 5

Awesome! I did let the rhubarb sit in the sugar, jello and tapioca for a half hour and it had started to get nice and gooey by that time. Tasted fantastic, and easy to make. The crowd at work raved about it!

5 5

This was a hit!! I love that it uses 4 cups of rhubarb. I will be making this again and when I do, I will make it a more generous (heaping) 4 cups. It also does not need an hour to bake the cake. Following the baking instructions on the box will be adequate. I cut the time down to 45 minutes because the top of the cake was getting brown. Probably 40 minutes is enough.

3 5

This was very easy! Overall - the cake could have been better though....<br/>My tapioca also did not cook (and yes, I let it sit in the rhubarb/sugar/jello mixture for a little over 30 minutes before pouring into the cake pan.) Thing is - I really do not think you need the tapioca with the jello in there. Mine set-up quite nicely even with the uncooked tapioca. It was not too liquidy at all. I used lemon cake and the flavor was great! A nice combo. I will try this again completely omitting the tapioca and submit another review. If that works - I would give this 4 - 4.5 stars with the adjustment.