How to Make It
In a large, deep skillet, heat the 3 tablespoons of olive oil. Add the garlic and cook over moderate heat, stirring frequently, until just beginning to brown, about 3 minutes. Stir in the breadcrumbs and cook until beginning to brown, about 1 minute
Add the langoustines to the skillet in a single layer. Pour the wine over them and cook until reduced by half, about 1 minute. Add the tomatoes and their juices, crushed red pepper and a generous pinch each of salt and black pepper. Cover and simmer over moderately low heat, stirring occasionally, until the tail meat is opaque, 16 to 18 minutes. Discard the garlic clove. Stir in the parsley and drizzle with a little more olive oil. Serve the langoustines with lemon wedges and crusty bread.
If langoustines are unavailable, use 1 1/2 pounds of head-on unpeeled colossal shrimp. To prepare the shrimp, use scissors to make a cut through the shell from the base of the head to the tip of the tail and remove the intestinal veins. The shrimp will cook in about 10 minutes.