Shrimp Charmoula

Name: Shrimp Charmoula
Ingredients: 1 pound large shrimp in shell (21 to 25 per pound), peeled, leaving tail fan attached, and deveined; 3 large shallots, finely chopped (1 cup); 6 tablespoons extra-virgin olive oil, divided; 1 small leek (white and pale green parts only), finely chopped; 1 garlic clove, minced; 1 fresh serrano chile (optional), seeded and finely chopped; 1/4 teaspoon sweet paprika; 1/8 teaspoon smoked paprika (optional); 1/8 teaspoon turmeric; 1/2 teaspoon grated lemon zest; 1/2 cup fresh lemon juice; 2 teaspoons mild honey; 2 tablespoons chopped flat-leaf parsley or cilantro