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Rhubarb Surprise Cake

From Connie Braun - Victoria, KS - 1995
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Ingredients
  

  • 3 cups rhubarb diced
  • 1 ½ cups water
  • 1 cup sugar
  • 1 box (3 oz) strawberry flavored Jell-O
  • miniature marshmallows
  • 1 box white cake mix

Instructions
 

  • Combine first three ingredients in a saucepan and bring to a boil. Add box of jello. Stir together and set mixture aside.
  • Preheat oven to 350°F. Butter the bottom of a 9x13-inch cake pan. Cover the bottom of the pan with miniature marshmallows (or quartered large marshmallows).
  • Prepare cake mix according to package directions using the whole egg recipe. Pour the cake batter over the marshmallows in pan, spreading evenly to all edges.
  • Ladle the rhubarb mixture onto the cake batter, again evenly covering the whole pan. Put on middle rack in oven and bake for 45-50 minutes (until cake is done).
  • Let cool at least 30 minutes. Serve by flipping pieces upside down.