How to Make Camarones a la Diabla
Heat the oil in a 14-inch pan or skillet or wok over medium heat, then add the dried chiles. Fry, constantly stirring, until the chiles are a dark red, about 5 minutes. Remove the chiles and place them on a plate; set them aside.
Add the onion and tomatoes and cook, occasionally stirring, until softened, about 10 minutes. Add the garlic and cook for 2 minutes. Add the chipotle pepper, 2 cup of water, and the fry chiles back to the pan. Bring to a boil.
Reduce heat and simmer, occasionally stirring, until the chile peppers softened, about 15 minutes. Transfer the chiles mixture to a 64-ounce blender, add ½ cup of water and blend until you have a thick, smooth consistency, about 3 minutes. Stop the blender a few times during blending to scrape the sides and bottom of the jar with a rubber spatula to ensure the smoothest result possible. Be sure to leave the hole in the lid open, and cover loosely with a clean kitchen towel, to allow the steam to escape).
In the same pan over medium heat, pour the blended diabla sauce (if necessary, use a rubber spatula to scrape the sides of the jar). Next, stir in allspice and ketchup into the sauce and bring to a boil. Reduce the heat to medium and stir in the butter and the shrimp; cook until shrimp are fully cooked, about 5 to 7 minutes. Garnish with fresh cilantro.
Serve with white rice, salad, refried beans, and corn or tortilla, if desired.