Place macaroni in a medium saucepan or skillet and add just enough cold water to cover.
Add a pinch of salt and bring to a boil over high heat, stirring frequently.
Continue to cook, stirring, until water has been almost completely absorbed and macaroni is just shy of al dente, about 6 minutes.
Immediately add evaporated milk and bring to a boil.
Add cheese.
Reduce heat to low and cook, stirring continuously, until cheese is melted and liquid has reduced to a creamy sauce, about 2 minutes longer.
Season to taste with more salt and serve immediately.
