Shrimp Tikka with Fresh Mango Chutney

For shrimp:

• 1/4 cup melted butter
• 2 tablespoons fresh lime juice
• 1 (1-inch) piece fresh jalapeño, chopped (about 2 teaspoons)
• 1 (1-inch) piece peeled ginger, chopped
• 1 large garlic clove, smashed
• 2 teaspoons ground garam masala
• 3/4 teaspoons turmeric
• 1/8 teaspoons grated nutmeg
• 2 pound large shrimp in shell, peeled, leaving tail fan attached

For chutney:

• 1 teaspoon ground cumin
• 1 (3/4-pound) unripe mango, chopped
• 1/3 seedless cucumber, peeled and chopped (3/4 cup)
• 1/2 cup chopped red onion
• 1 to 2 teaspoons minced fresh jalapeño with seeds
• 3 tablespoons fresh lime juice
• 3 tablespoons thinly sliced mint
• 3 tablespoons chopped cilantro

• Equipment: 10 (12-inch) wooden skewers, soaked in water 30 minutes
• Accompaniment: lime wedges

preparation

Marinate shrimp:
Purée all ingredients for marinating shrimp, except shrimp, with 1/2 tsp. salt in a blender until smooth. Pour into a sealable bag, then add shrimp and marinate at cool room temperature, turning bag occasionally, 30 minutes. Make chutney while shrimp marinate: Toast cumin in a dry small skillet over medium heat, stirring occasionally, until fragrant, about 1 minute.

Stir together remaining chutney ingredients with 1/4 tsp salt, then sprinkle with toasted cumin.

Make kebabs:
Prepare grill for direct-heat cooking over hot charcoal (medium-high heat for gas);

Thread 4 shrimp onto each skewer, leaving small spaces between them. Put on a tray.

Oil grill rack, then grill skewers, covered only if using a gas grill, turning once, until just cooked through, 4 to 6 minutes total. Serve with chutney.