Follow manufacturer’s directions on bag. Deposit 1 pound 8 ounces prepared cake batter and 12 oz prepared cake batter. Treat a 10 inch bundt pan with spray and deposit 1 pound 12 ounces into the pan, spread evenly. Pipe in 8 ounces strawberry filling, being careful to pipe the filling in the center of the pan. Top with the remaining 12 ounces prepared cake batter. Bake at 350F until cake springs back lightly when touched. Let cool 10 minutes then depan and let cool completely.