Butterscotch Swirl Ring Cake
["1 pkg. Duncan Hines Deluxe white cake mix", "1 (4 serving size) pkg. butterscotch instant pudding and pie filling mix", "1 1/3 c. water", "2 eggs", "7 Tbsp. butter or margarine, divided and softened", "1/2 c. packed dark brown sugar", "2 Tbsp. all-purpose flour", "1 Tbsp. light corn syrup", "2 Tbsp. milk", "1 c. confectioners sugar"]
["Preheat oven to 350\u00b0.", "Heavily grease and flour 10-inch tube pan.", "Reserve 3 tablespoons pudding mix for glaze.", "Put dry cake mix, remaining pudding mix, water, eggs and 1/4 cup butter into large mixer bowl.", "Prepare cake as directed on package.", "Reserve 1 cup batter; spread remainder evenly in pan.", "Blend reserved batter, brown sugar and flour; spoon in ring onto batter.", "Using spoon, fold brown sugar mixture into batter; go around pan twice and avoid scraping sides of pan.", "Bake at 350\u00b0 for 40 to 50 minutes; cake is done if toothpick inserted in center comes out clean.", "Cool in pan for 25 minutes; invert on serving plate."]
["cake mix", "butterscotch instant pudding", "water", "eggs", "butter", "brown sugar", "flour", "light corn syrup", "milk", "confectioners sugar"]