Summer cocktail season is a highly-anticipated time of the year, and for good reason. Sangria, frozen margs, tiki drinks, magnums of rosé…it’s a pretty unbeatable scene. But once cooler temperatures head this way, Brooklyn’s bartenders take full advantage of fall flavors, adding beverages to their lists that incorporate pumpkin, cinnamon, nutmeg, and maple. Plus, the return of 35-degree temperatures means that hot cocktails are acceptable orders once again (and for this, we’re verygrateful). Now…