In a small sauce pan, add 1 tbsp of salt and 2 cups of water and bring to a boil.
2 tbsp salt
While the water is heating, chop the white onion and cilantro and set aside. You'll also cut the Roma tomatoes in half.
2 Roma tomatoes, 1/3 bunch cilantro, 1/4 white onion
Once the water has reached a boil, remove from heat and add the serranos and chile de arbol to the water, cover and let sit for at least 15 minutes.
1 serrano pepper, 6 chili de arbol
Begin to heat your cast iron pan on medium to high heat. In a bowl, toss tomatoes, tomatillos, garlic and jalapeno in a small amount of olive oil.
Add tomatoes, tomatillos, garlic and jalapeno to the pan. Turn every couple of minutes until everything is nicely charred on all sides. You'll want to pull the garlic early, so it doesn't turn bitter, but you can leave the rest on for longer. The more char you get, the smokier and more robust the sauce.
2 Roma tomatoes, 3 tomatillos, 1 jalapeno pepper, 2 cloves garlic
Remove everything from the cast iron pan, but leave the pan unwashed on the stove top.
Add charred tomatoes, tomatillos, garlic, jalapeno, serranos and chili de arbol to a food processor and blend until smooth.
2 Roma tomatoes, 3 tomatillos, 1 jalapeno pepper, 1 serrano pepper, 6 chili de arbol, 2 cloves garlic
Add all of the dry ingredients and continue to blend until smooth.
1 tsp smoked paprika, 1 tsp smoked cumin, 2 tbsp pepper, 2 tbsp salt
Heat the olive oil in the cast iron pan on medium heat. Once hot, add the sauce to the pan and stir continuously until the oil and sauce have blended (approx 4-5 minutes). Remove from the pan and add to a bowl.
3 tbsp olive oil
Add the onion and cilantro to the salsa, and the put it in the fridge to cool.
1/3 bunch cilantro, 1/4 white onion