Ingredients
Method
- Toast ancho and guajillo in a dry Dutch oven over medium 30 seconds per side until fragrant, not blackened.
- Soak chiles in hot broth 15 minutes; blend completely smooth.
- Heat oil in Dutch oven. Cook onion 6 minutes until edges golden; add garlic, cumin, and tomato paste for 1 minute.
- Add puree, brisket, and salt; simmer uncovered 40 minutes until meat reaches 165°F and sauce is glossy.
- Add lime juice; rest 10 minutes before serving to settle sauce.