Memphis dry-rubbed ribsBlue Ribbon BBQ, 908 Massachusetts Ave., ArlingtonThe ribs are rubbed with a 15-spice house blend and slow-smoked for five to six hours over hard woods. Then they are slathered with Blue Ribbon’s secret rib splash. Also available are pre-rubbed, pre-smoked cold ribs that can be thrown on the grill or taken for a summer adventure. Full slabs, hot or cold, cost $25. Platters are available in 1/3 or 1/2 slabs with two sides and cornbread, and cost $15 and $17,