For best results bake these Reuben Puffs from frozen on parchment paper until dough is brown. For hotel quality ovens – 350 degrees for 14-20 minutes. Electric ovens – 400 degrees for 20-26 minutes. Gas ovens – 375 degrees for 20-24 minutes. Rotate baking tray 180 degrees halfway through baking process. Cooking times may vary based on oven.