Chile de Arbol Salsa at El Camino Real
I like this salsa even better than habanero because it doesn't blind you, has a smoky flavor chipotle-based concoctions can't match, and is bizarrely hard to find in Orange County Mexican restaurants considering there's so many damn wabs here from Jalisco, Zacatecas, and Michoacán, where the salsa is king. El Camino Real's version is a bit more watery than it should be, but that just means the heat burns you slower than in the thicker, grittier versions I grew up on. Drizzle it on whatever you order, and watch how quickly it disappears from your table once someone realizes El Camino Real offers unlimited batches of their golden fried tortilla chips.
El Camino, Real, 303 N. Euclid St., Fullerton, (714) 447-3962.