1 (18.25 ounce) box white cake mix
1 large box strawberry gelatin
2 tablespoons flour
1/2 cup water
4 eggs
1/2 (10 ounce) box frozen sliced strawberries, thawed
3/4 cup vegetable oil

Combine cake mix, gelatin, flour, water and eggs. Beat 2 minutes. Add strawberries with syrup to batter and beat 1 minute. Add oil and beat 1 minute. Pour into two (9-inch) round cake pans. Bake at 350 degrees F for 25 to 35 minutes. When cooled, frost with Strawberry Frosting.

Strawberry Frosting
1/2 cup butter
1 (16 ounce) box confectioners' sugar
1/2 (10 ounce) box sliced strawberries with syrup
1/2 teaspoon vanilla extract

Beat butter until smooth. Add sugar, alternating with strawberries and syrup until smooth. Add vanilla extract and, if necessary, thin with a little milk or cream to spreading consistency.