Luscious Tandoori Lamb Chops

Name: Luscious Tandoori Lamb Chops
Ingredients: 8 lamb rib chops (2 1/2 pounds); 3/4 cup Greek yogurt; 1/4 cup heavy cream; 3 tablespoons fresh lemon juice; One 3-inch piece of fresh ginger, peeled and minced; 4 large garlic cloves, minced; 1 tablespoon malt vinegar; 1 tablespoon garam masala; 1 tablespoon ground cumin; 1 tablespoon paprika; 1/2 teaspoon cayenne pepper; 1/4 teaspoon ground mace (optional); 1/4 teaspoon freshly grated nutmeg; Kosher salt; 2 tablespoons vegetable oil; 3 tablespoons unsalted butter, melted