Sure, most guests will appreciate a homemade cocktail — but maybe not love the half-hour it takes you to make one for everyone. Enter the Venning brothers: a laid-back duo behind London's buzziest cocktail bars, here with 50 inspired recipes for batched, bottled cocktails you can make ahead of time and serve all at once. Think: having cocktails ice-cold and ready to go, in the fridge, when you and yours get home from work on a Friday night.