Source: https://www.youtube.com/watch?v=yqsW4O8Ejmw&t=615s

2 jalapeƱos

Broil or heat in a dry pan until blistered and roasted

Place in water to peel the skin off

Scrape out seeds and membrane

6 roma tomatoes

Remove the center goop

2 jalapeƱos
4 cloves garlic
1 red bell pepper
1 onion
2 ancho chiles
3 green onions
2 lime
0.25 cup cilantro
1 tsp chili powder
1 tsp cumin
2 tsp kosher salt
0.5 tsp black pepper

Chop everything and put in a bowl

Use only the whites of the green onions

Refrigerate for at least 2, ideally 6 hours