Ground mustard (referred to as dry mustard in some recipes) is made from mustard seeds that have been finely ground. When a recipe calls for prepared mustard, use yellow or brown mustard commonly served as a condiment.
Now you can enjoy the robust flavor of the Chinese hot mustard you can't get enough of at Chinese restaurants at home. It's surprisingly simple to make, and a definite highlight of an authentic Chinese meal. —Matt Warren, Mequon, Wisconsin