If you spied the huge white tent pitched in the heart of San Francisco’s Union Square this past weekend, you knew it could only mean one thing:

The arrival of SF Chefs, the annual food-wine-cocktail extravaganza that celebrates the Bay Area’s home-grown culinary culture.

Top chefs, vintners, sommeliers and mixologists descended upon downtown to put on a series of special dinners, wine seminars, panel discussions, and culinary battles before setting up inside the tent to dole out gourmet eats and drinks to throngs of attendees.

Chef Joey Altman’s all-chef band, the Soul Peppers, entertained the hungry crowd.

Earlier that afternoon, the first round of the Eater Chef Challenge took place at the Westin St. Francis Hotel, pitting the team of Mark Sullivan of Spruce in San Francisco and Omri Aflalo of Bourbon Steak in San Francisco against the team of Mark Dommen of One Market Restaurant and David Bazirgan of the Fifth Floor in San Francisco. With an hour on the clock, the two teams had to incorporate lamb and Guittard chocolate into two dishes, which were presented to a panel of judges.

As the clock ticked down, the Dommen-Bazirgan team plated their lamb dish with mole flavors, along with chocolate ice cream created with liquid nitrogen. On the opposing side, Sullivan and Aflalo put up their lamb dish with a Moroccan influence, along with chocolate mousse with caramel.

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