Cinnamon French Toast Bake for Christmas morning. 1/4 cup melted butter 2 cans refrigerated cinnamon rolls with icing 5 eggs 1/2 cup heavy whipping cream 2 teaspoons ground cinnamon 2 teaspoons vanilla 1 cup chopped pecans 3/4 cup maple syrup 1. Preheat the oven to 375 degrees. 2. Pour the melted butter into an ungreased 13x9 glass baking dish. Separate both cans of refrigerated cinnamon buns into 16 cinnamon buns, setting the icing aside.