The best cinnamon buns are fresh baked on the morning! This recipe can be made up to the step of forming the buns (for the second proof) the night before. This way they'll be perfect to pop into the oven in the morning. Once you have filled and formed the buns, and placed these into the tray as directed, cover and store in the refrigerator overnight. The following morning, remove from the refrigerator and set in a warm space for about an hour while you preheat your oven. Then bake and finish as normal.