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
Prep time: 10 min
Cook time: 35 min
box of white cake mix
3 oz. package of watermelon Jello
cup vegetable oil
Cans of prepared frosting (to taste)
Food coloring (optional)
- 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.
- Mix all on high for 2 minutes.
- Pour batter into a greased 9x13 pan and pop into a 350° oven for 35-38 minutes.
- 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!