Salsa with stems

3 ounces aji mirasol chiles (I used one order from the site) 1 teaspoon salt , plus additional to taste 3 tablespoons safflower oil 4 tablespoons red onions ,[...]

12 large red bell peppers olive oil , for coating the peppers plus 2 tablespoons (or as needed) 4 serrano chilies 2 cloves garlic , thinly sliced 1 tablespoon[...]