Thai Marinated, Skewered and Grilled Jumbo Shrimp

INGREDIENTS

• 1 tablespoon lime zest
• 1 tablespoon tamarind paste
• 1/4 cup Thai fish sauce
• 1/2 cup lime juice
• 24 jumbo shrimp, peeled and deviened
• 6 (6 or 8-inch) bamboo skewers
• 4 tablespoons sriracha sauce
• 1 tablespoon kosher salt
• Vegetable oil, for oiling grill
• 2 cups coconut milk
• 1 tablespoon minced garlic
• 1 tablespoon minced ginger