This stewy, spicy Moroccan shrimp dish is deeply rich and flavorful but astoundingly simple to make. The recipe is based on the version of crevettes pil pil that home cook Houda Mehdi demonstrated for us in her kitchen in Fes, Morocco. All of the elements—the warm spices, sweet-tart tomatoes, citrusy lemon and herbal cilantro—together are a delicious match for briny-sweet shrimp. The amount of olive oil—½ cup—may seem excessive, but that much is needed to gently oil-poach the shrimp, leaving them plump, tender and full of flavor. We find that salting the shrimp and letting them stand for about 15 minutes allows the seasoning to penetrate, so don’t bypass this step. Serve with warm flatbread for soaking up the sauce.