Rhubarb and Strawberry Dump Cake

By JENORA

4.67 / 5

15min

20min

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4 cups chopped rhubarb
2 cups sliced strawberries
1 (3 ounce) package strawberry-flavored gelatin mix (such as Jell-O®)
¼ cup white sugar or more to taste
1 (15.25 ounce) package yellow cake mix
1 cup warm water
¼ cup butter