Arrange hot dogs in toasted buns and top with green chile.
Dollop 1 tablespoon sour cream over each hot dog and top with a scattering of finely chopped onions and jalapeños.
Green Chile Sauce
This sauce, made with roasted green chiles, is served all over New Mexico and parts of Colorado. Depending on the heat of the chiles (much of their power lies in the seeds and ribs), it can range from mild to incendiary. Locals will eat green chile on almost anything. Try it over fried eggs, tucked into a burrito, or with grilled steak.
Makes about 4 cups.
Heat the oil in a medium heavy saucepan over medium heat.
Add the onions and cook, stirring occasionally, until softened, about 10 minutes.
Add the garlic and cumin and cook until fragrant, about 30 seconds.
Add the flour and cook, stirring constantly, for 1 minute.
Add the green chile, chicken stock, and salt and bring to a boil.
Reduce heat to a simmer and cook, stirring occasionally, until slightly thickened, about 15 minutes.