It's telling that the Orange County Bartenders Cabinet—the group of local bartenders that meets once a month to teach one another how to make better drinks for the rest of us—uses this Seal Beach beaut as its home bar. Jason Schiffer and his crew have made 320 Main a Tesla-esque lab for cocktail experimentation, a place where Old-Fashioneds come out with the frequency of water with ice—and mustard isn't just a condiment for fries, but also comes in drinks. Despite its wizardry, the most remarkable part about Schiffer's crew is its lack of egos—no one won't look down on you if all you want is a Cosmopolitan, but one will whip up something on the house to entice you toward greatness.