Camarones Embarazados (Adobo Grilled Shrimp)

Step 1

In a medium saucepan, combine the whole tomatoes, guajillo chiles, chiles de árbol and garlic cloves, and cover with water by an inch or two. Bring to a boil over medium-high heat, then reduce heat to medium and simmer until the tomatoes are very soft and their skins start to break, 8 to 10 minutes. (The chiles should rehydrate and plump up.) Using a slotted spoon, transfer the solids to a blender, and add the scallions, oregano, allspice, cumin, thyme, vinegar, butter, Mexican chocolate and salt. (Discard the cooking water.) Purée until completely smooth, then scrape the adobo into a large bowl and let cool completely.

Step 2

Place the shrimp in the bowl with the cooled adobo and toss to coat. Cover and refrigerate for at least 1 hour and up to 24 hours.

Step 3

When ready to eat, take the shrimp out of the refrigerator. Prepare an outdoor charcoal or gas grill for direct grilling over high heat. Thread the shrimp onto skewers and place on a sheet pan. If using head-on shrimp or shell-on shrimp, insert the skewer where the head meets the body, thread the skewer through the body while straightening it out, then push it out through the tail end. If using peeled shrimp, thread the skewer through the tops and bottoms of the shrimp without passing it through the length of the bodies. Once all are skewered, generously douse the shrimp with more adobo (reserve some for serving) and sprinkle a bit of salt on top.

Step 4

Scrape the remaining adobo into a small saucepan or skillet and set over medium heat. Bring to a simmer and continue simmering, stirring constantly, for 3 to 4 minutes. Scrape into a serving bowl and set aside.

Step 5

Set the skewers on the hot grill grate. For head-on shrimp, cook, flipping once, until the shells have crisped, browned and achieved some charring, and the bodies have cooked through, 3 to 4 minutes per side. For headless shell-on shrimp, grill for about 3 minutes per side, and for peeled shrimp, about 2 minutes per side. (If using a gas grill, close the lid between flips.)

Step 6

Transfer the skewers to a platter and serve with the reserved adobo sauce and lime wedges. Let everyone eat by dipping the shrimp in the adobo sauce and squeezing fresh lime juice on top. The shrimp can be eaten in their entirety — heads, shells, tails and everything in between — or peeled.