How to Bake Thaw cinnamon rolls overnight. Preheat oven to 375 degrees. Unroll and shape each roll into a tree by starting at the base and making a 2-2.5" line of dough and then curving it up to make the new row slightly smaller, and repeating until the dough is gone. Bake according to package. Remove and let cool, 3-5 minutes. Slather each with icing and decorate as desired. Enjoy!