The city is heavy on cocktail bars but you should also make a rehabilitating journey to a different kind of bar-at Christopher Elbow Artisanal Chocolates, one of few speciality chocolate stores in San Francisco. It’s housed in an airy white space that’s more gallery than store, where a delicious sprinkling of exotic truffles grace sparse glass cases and a modern, cocoa-hued lounge serves piping-hot China cups of yummy drinking chocolate in 14 different varieties. Kick back on the banquette with a good book and then take some sweets to go: Flavours at Christopher Elbow Artisanal Chocolates include bourbon pecan, caramel fleur de sel, Vietnamese cinnamon, Persian-spiced marzipan, and bananas Foster.