Wander through Borough Market, one of London's biggest and best farmers' markets, at the base of the London Bridge. Start with a dozen West Mersea No. 2 oysters ($34.50) from Richard Haward, whose family has been in the oyster business since 1792. Then wait out the line for Kappacasein's Swiss raclette, a filling plate of melted Ogleshield cheese scraped satisfyingly onto a bed of gherkins and new potatoes ($6.60). Finish with a tasty chorizo sandwich ($7.30) accompanied with a few sprigs of rucola and piquillo peppers from Brindisa.
Get a taste of London's burgeoning coffee-geek scene at Nude Espresso, where you can order a flat white ($3.90)—a chimera of a cappuccino and a latte. The roasting plant, hidden away in the Cooperage yard of the Old Truman Brewery, offers the cult-favorite East blend (named after East London, not the beans, which are pure Arabica) in both brewed and bean form ($8.62/250g).
Go beyond Brick Lane curry houses with Monisha Bharadwaj's walking tour ($19) of Southall, often called London's Little India, where the street signs are in English and Punjabi. Bharadwaj, a Mumbai-born dancer and chef, offers monthly walking tours through the borough's markets (with frequent stops to snack) as well as cooking classes. For palates more Anglo than Indian, take one of cookbook author Celia Brooks Brown's Gastrotours ($125) through Marylebone Village, taking time to stop at the Ginger Pig, an award-winning butcher, and for a cheese tasting at La Fromagerie.