Watermelon Cake

(Courtesy of Mr Food)

Ingredients:
1 pkg. (18.25 oz.) white cake mix
1 pkg. (4 serving) watermelon-flavored gelatin mix
1 Tbsp. all-purpose flour
3/4 c. vegetable oil
1 1/2 c. cubed and seeded watermelon, well drained, divided
4 eggs
1/2 c. (1 stick) butter, softened
16 oz. confectioners' sugar

Directions:
Preheat oven to 325 degrees.  Coat two 9 inch round cake pans with cooking spray; set aside.

In a large bowl, with an electric mixer on low speed, beat cake mix, gelatin mix, flour, oil and 1 c. watermelon until well mixed.  Beat in eggs, one at a time, until well blended.

Divide batter between the 2 pans.  Bake 40-45 minutes, or until a wooden toothpick inserted in the center comes out clean.  Let cool 10 minutes then invert onto wire racks to cool completely.  

In a medium bowl, with an electric mixer on medium speed, beat butter and confectioners' sugar.  Gradually beat in remaining 1/2 c. watermelon until smooth.

Place 1 cake layer upside down on a serving plate then frost the top.  Place 2nd layer over first and frost the top and sides.  Serve, or cover loosely until ready to serve.

http://www.mrfood.com/Cakes/Watermelon-Cake-576