Strawberry Cake
["1 Duncan Hines strawberry cake mix", "1 c. fresh or frozen strawberries", "1 tsp. butternut-vanilla flavoring"]
["Make cake by directions on box, adding 1 cup strawberries and flavoring.", "Bake at 350\u00b0 until done, about 45 minutes."]
["cake mix", "frozen strawberries", "butternut-vanilla flavoring"]