One Bowl Watermelon Sheet Cake

By Carissa Nelson
June 4, 2018
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Author Notes: This One Bowl Watermelon Sheet Cake starts with a cake mix and a box of Jello and comes together in minutes using just one bowl. Honestly, the longest part of it is the baking time! A perfect crowd-pleaser for picnics, or just a fun summer dessert to have around at home.Carissa Nelson

Serves: 12
Prep time: 10 min
Cook time: 35 min

  • 1 box of white cake mix
  • 1 3 oz. package of watermelon Jello
  • 2 eggs
  • 1 1/4 cups water
  • 1/4 cup vegetable oil
  • Cans of prepared frosting (to taste)
  • Food coloring (optional)
  • Sprinkles (optional)
  1. Add the box of cake mix, box of jello, eggs, water and oil into a large bowl. If you'd like to take the cake color up a notch, add a few drops of red food coloring.
  2. Mix all on high for 2 minutes.
  3. Pour batter into a greased 9x13 pan and pop into a 350° oven for 35-38 minutes.
  4. Let the cake cool completely and top with 1-3 cans of prepared frosting. I used Duncan Hines Whipped and added 15 drops of food coloring for the green color. Top with sprinkles if you want some flair!

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