One of the best things about gravy, besides the fact that it’s frequently a roast turkey’s saving grace, is that you can custom-tailor it to any tastes. One year I added orange zest for a just-bold-enough citrusy kick. Last year we went super-funky and rustic with all the giblets (and then some). This year I find myself in a Riesling phase — dry, not sweet — but I can only imagine a sweet Riesling would make a delicious turkey gravy as well, as would your favorite white wine. The peppercorns add a subtle earthy spiciness that complements the acidity of the wine.