Double Strawberry Cake

inGREDIENTS

1 (14.25 oz) box white cake mix
3 1/2 tablespoon all purpose flour
1 (3 oz) box strawberry jello
1/2 cup water
3/4 cup vegetable oil
4 eggs
1 teaspoon vanilla extract
1 cup strawberry puree, from fresh or frozen berries

FROSTING

1 (8 oz) package cream cheese, room temperature
1/2 cup butter (1 stick)
1 cup strawberry puree
4-5 cups powdered sugar

PREPARATION