Grilled Mahimahi with Pineapple Sambal

Name: Grilled Mahimahi with Pineapple Sambal
Ingredients: 2 garlic cloves, finely chopped; 3 oz shallots, halved lengthwise and thinly sliced crosswise (2/3cup); 3 tablespoons vegetable oil; 2 fresh Thai or serrano chiles (2 to 3 inches long), minced, including seeds; 3/4 pineapple (preferably not labeled super sweet), peeled, cored, and cut into 1/2-inch cubes (4 cups); 1 1/2 tablespoons Asian fish sauce; 1 teaspoon sugar; 1/4 teaspoon salt; 1/3 cup coarsely chopped fresh cilantro; 6 (1- to 1 1/2-inch-thick) pieces mahimahi fillet with skin (6 oz each)