4 garlic cloves, thinly sliced
1/4 cup plus 2 tablespoons pure olive oil
1/2 pound shiitake mushrooms, stems discarded and caps thickly sliced
2 pounds jumbo shrimp, butterflied in their shells (see Note)
Salt and freshly ground pepper
1/4 cup water
1 cup coarsely chopped cilantro leaves
2 tablespoons unsalted butter
Yellow rice and lime wedges, for serving

In a large skillet, cook the garlic in the olive oil over moderate heat until lightly browned and fragrant, about 1 minute. Using a slotted spoon, transfer the garlic to a plate. Add the mushrooms to the skillet and cook over high heat, stirring occasionally, until browned, about 7 minutes. Season the shrimp with salt and pepper and add them to the skillet. Cook over high heat, stirring occasionally, until nearly cooked through, 7 to 8 minutes. Add the water and cook just until evaporated. Add the cilantro leaves and butter to the skillet and stir to coat. Transfer the shrimp and mushrooms to a platter and garnish with the sliced garlic. Serve the shrimp with yellow rice and lime wedges.