The difference between red and green chile is whether it has been dried, but nobody here calls it sauce (even though it almost always is). Hatch is a town that

The difference between red and green chile is whether it has been dried, but nobody here calls it sauce (even though it almost always is). Hatch is a town that produces it, but they're technically Anaheim peppers. However, if you walk into any restaurant in New Mexico and say "I'd like the Hatch chili sauce on the side" you're going to get a raised eyebrow. The state question is "red or green?"