A good glaze recipe earns its keep, and this is no exception. Tart cider vinegar balances a generous serving of light brown sugar, and the whole-grain mustard seeds add spicy heat and texture. This sauce goes well with meats that dont have too strong a flavor: pork or chicken marry nicely and dont compete. Make this a fall meal with roasted sweet potatoes and apples, or lean into summer flavors with ears of grilled corn or peaches.