Adapted from a CopyKat recipe
Put macaroni in Instant Pot with enough water to barely cover. Put hot sauce, and mustard on top and mix it well. Mixing may be superstitious; not sure.
Set IP to high pressure for six minutes. Do quick release.
Drain any excess water. Add milk, butter, and cheese, and mix until macaroni is coated.
Serve as is; or butter a pan and pour the macaroni into it, top with buttered bread crumbs, and heat in oven until breadcrumbs are toasted.