VITAL WHEAT GLUTEN:
Use Vital Wheat Gluten and not Gluten Flour. Gluten Flour is a mixture of Vital Wheat Gluten and Bread Flour. Vital Wheat Gluten helps form a better dough that is better able to trap the gas given off by the yeast. This enables more of the gas to be trapped which means the loaf will be taller and have a rich structure and texture.
POTATO FLAKES:
Potato Flakes (Instant mashed potatoes) help the bread stay moist longer which helps keep it from stailing. It also helps makes a more tender bread with a better structure and taste.
Read more: Special bread making ingredients