Seaside BBQ operates the outdoor grilling program at Cardiff Seaside Market on San Elijo Avenue in Encinitas's Cardiff-by-the-Sea, anchored by the market's signature burgundy-pepper tri-tip—known locally as Cardiff Crack—a dry-rubbed cut that has defined the store's identity since veteran butcher Marv Siesel founded the market in 1968. The weekend BBQ tent serves smoked tri-tip sandwiches on brioche, ribs, and grilled chicken alongside the surf-culture foot traffic from San Elijo State Beach that also feeds shops like Cardiff Surf Co. down the road. All proteins are cut and seasoned from the market's full-service butcher counter, which stocks USDA Choice and Prime grades along with sustainable seafood and house-marinated options. The outdoor format extends Cardiff-by-the-Sea's walkable food scene near the Coastal Rail Trail, complementing independent grocers like Just Peachy Market in the neighborhood's specialty-food ecosystem. The Cardiff Crack preparation applies a proprietary burgundy-wine-and-cracked-pepper marinade to choice tri-tip before grilling over high-heat charcoal to an internal temperature targeting 130°F for medium-rare center and caramelized exterior bark.