Start in Park Slope at Bklyn Larder, a lovely gourmet grocer, for Brooklyn-made bitters and bacon peanut brittle. Next, walk to Bierkraft, an early stockpiler of hard-to-find craft beers that is still exceptional.
When lunch hits, head to Court Street Grocers in Carroll Gardens, where the Mother-in-Law combines slow-cooked beef, kimchi, and broccoli in a sandwich so juicy it soaks through its bread. Finally, go a few blocks north to Brooklyn Farmacy. There are few things more Brooklyn than an egg cream—and the Farmacy's best version is made with small-scale ingredients like organic maple syrup and Hudson Valley milk.