A sparkling pear drink complements the dishes of fall, offering a refreshing accompaniment to warm spices and hearty meals.  This sparkler combines pear juice, maple simple syrup, and a touch of fresh pomegranate and lemon for a festive drink fit for the Thanksgiving table.  Bubbles are contributed by mineral water though sparkling white wine such as Prosecco does the trick as well, making this a drink that easily transforms from non-alcoholic to full-on cocktail.  Slip a thinly sliced pear into the glass as a garnish, and for an even more festive touch, brûlée it first. Along with garnishes and drink recipes, I discuss mixology according to the seasons in my…