1Begin by preparing the salsa. Place the Tomatillo, Chile de arbol, Ajo, and Cebolla blanca on a comal or heavy skillet over medium-high heat. Roast them, turning occasionally, until the Tomatillo are softened and slightly charred, and the Chiles de arbol are fragrant and darkened but not burnt. This will take approximately 10-12 minutes.
2Transfer the roasted Tomatillo, Chile de arbol, Ajo, and Cebolla blanca to a molcajete or blender. Add the Cilantro and 2 grams of Sal. Grind or blend until a rustic salsa is formed. Set aside.