Belgium produces 220,000 tonnes of chocolate annually, yet its brewing tradition predates the nation itself — medieval abbeys perfected lambic fermentation centuries before pralines arrived from Swiss confectioners in the 1850s. The marriage of these two crafts emerged only in the late twentieth century, when local guides began threading Grand Place's cobblestone perimeter to connect family-run chocolatiers with barrel-aged gueuze cellars. Today, walking tours depart from the Charles Buls statue, where the Gothic town hall's 96-metre spire frames a route through fourteen tasting stops. Grand Place itself anchors every Brussels culinary tour. UNESCO inscribed the square in 1998, citing its intact guild houses and unbroken commercial use since the thirteenth century. Chocolate ateliers occupy ground-floor arcades where lace merchants once traded; upstairs, brewers age lambic in oak foeders salvaged from Burgundy wine estates. The juxtaposition is deliberate — Belgian law designates sixty-two chocolate makers as "artisan" producers, and most cluster within three blocks of the Manneken Pis fountain. Hungry Mary's three-hour itinerary includes bean-to-bar demonstrations, where cacao nibs roast in copper drums before tempering on marble slabs. The walking experience balances structured tastings with unscripted exploration. Guides pause at the Galeries Royales Saint-Hubert, Europe's oldest covered shopping arcade, to explain how nineteenth-century glass vaulting transformed chocolate retail — temperature-controlled vitrines allowed year-round displays of ganache-filled seashells and marzipan figures. Beer pairings follow a chronological arc: Trappist dubbel with dark pralines, kriek lambic with ruby cacao, and finally a blonde ale beside salted caramel. Each stop lasts twelve minutes, long enough to observe tempering techniques but brief enough to maintain the walk's two-kilometre rhythm. Five operators now run daily departures, but capacity remains limited — the artisan workshops that anchor these tours accommodate no more than fifteen visitors per session. Afternoon slots fill fastest, particularly during autumn when cooler air stabilizes chocolate handling and outdoor beer gardens extend their hours. The real achievement is logistical: coordinating six independent vendors, all within a six-hundred-metre radius, to deliver synchronized tastings without queue overlap. It is a system that mirrors the guild cooperatives that built Grand Place six centuries earlier.