Potato starch is the extracted starch from potatoes. The starch turns to a light, powdery, flour-like consistency once it has dried out, and it is a common ingredient that features in several recipes.

A: Potato starch and potato flour aren’t the same and generally aren’t used interchangeably. Potato starch is extracted from high-starch potatoes, then dried. When boiling a pot of russet potatoes, ...