Sometimes, if even for one beautiful moment, rooftop drinking season and hot cocktail season may intertwine like vines in a pumpkin patch on a clear, sunny day. And the Gansevoort Hotel’s recently refreshed rooftop bar is hanging on to the former and getting a head start on the latter. Its Take it Outside tipple mixes mezcal, triple sec, chai tea, steamed oat milk and agave syrup into a warming, boozy bev.