On a normal day, thirsty revelers easily drain two kegs of Guinness at Boston’s Black Rose tavern. Come St. Patrick’s Day — an official holiday in Bean Town — and they’ll plow thorough 55 kegs.
“It’s pretty crazy over there,” says Keenan Langlois, corporate chef for The Black Rose and the seven other restaurants in Boston’s Glynn Hospitality Group. “People start early and spend all day there.”
And these days, not all of that Guinness is going down parched gullets. With what he says is the largest Guinness account in the state of Massachusetts, Langlois figured it was time to use it as an ingredient in food, too. His Black Rose burger stacks prime beef with Irish bacon, shredded cabbage and Guinness-spiked ketchup. And he’s not alone.
Chefs have long known that the hearty Irish stout, brewed in Dublin since 1759, can add complexity to stews, soups, dips and even desserts. They use its bitterness and toasty malt flavor to offset rich, fatty meats, and echo its notes of chocolate and coffee in cakes and ice cream. Its creaminess offers a great platform for cheese, they say, especially Irish blues.
“It has a rich spectrum of uses,” says Paul Hartley, author of “Guinness: An Official Celebration of 250 Remarkable Years” (Hamlyn, 2009). “It’s this rounded velvety feel and it fuses with all the right things. Like oysters and blue cheese and chocolate. From time to time, I marinate chicken in Guinness and lime and grill it. It brings all that to life.”
Hartley’s idea of the perfect St. Patrick’s Day starts with Guinness-marinated Irish bacon, moves onto crepes with Guinness-poached mushrooms for lunch, and ends with a dinner of Irish “beef cobbler,” that is, Guinness-braised beef served with scones.
Pastry chef Alice Medrich would add dessert. Medrich has laced Guinness through chocolate cupcakes, reduced it to a syrupy essence, concocted creamy, egg-yolk-based ice cream from it and made Guinness granita to scrape over vanilla ice cream. She sometimes uses it for the contrast of bitter and sweet, but also exploits its notes of coffee and chocolate to layer flavors. Exhibit No. 1? Her stout float with chocolate ice cream, chocolate syrup and Kahlua.