Double Strawberry Cake

Name: Double Strawberry Cake
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Cuisine: American
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; 1 (8 oz) package cream cheese, room temperature; 1/2 cup butter (1 stick); 1 cup strawberry puree; 4-5 cups powdered sugar