This pickle is excellent as a snack, with cheese as an appetizer, or with just about any grilled or roasted meat . 3 firm, unripe mangoes, peeled, pitted and cut into wedges 1 / 4-to 1 / 2-inch thick Juice and grated peel of 2 limes 1 / 2 cup peeled, grated fresh ginger ( this is the amount the authors use; adjust to taste as desired ) 3 tablespoons minced garlic 2 teaspoons grainy mustard 1 OR 2 jalapenos OR other small chiles of your choice, cut into thin slices 2 teaspoons kosher OR other coarse salt Dah OR two of your favorite hot pepper relish OR hot sauce Freshly crackled black pepper 3 tablespoons black mustard seeds 1 / 2 cup canola OR sunflower oil