Sous Vide Chicken Khao Soi

Ingredients

• 2 dried ancho chiles, stemmed and de-seeded
• 1-2 dried chiles de arbol or japones chiles, stemmed and de-seeded
• 2 medium shallots, peeled and cut in half
• 8 cloves garlic, peeled and crushed
• 1 (2-inch) piece ginger, peeled and thinly sliced
• 2 tablespoons chopped cilantro stems
• 1 tablespoon ground coriander
• 1 tablespoon ground turmeric
• 1 teaspoon mild curry powder
• 1 teaspoon kosher salt, plus more to taste
• 1 1/2 pounds boneless, skinless chicken thighs
• 2 tablespoons vegetable oil
• 2 (14-ounce) cans full-fat coconut milk
• 2 cups low sodium chicken broth
• 2–3 tablespoons fish sauce
• 1 tablespoon palm sugar or packed dark brown sugar
• 1 pound Chinese egg noodles or spaghetti, cooked according to package directions
• Fresh cilantro, fried shallots, chili oil, and lime wedges, for serving