Molasses-Glazed Grilled Spare Ribs

1) Bring a large pot of lightly salted water to a boil. Add ribs and gently simmer for 1 hour. 2) Meanwhile, in a medium saucepan, whisk remaining ingredients--except cilantro. Bring to a boil over medium-high heat, then reduce to a low simmer. Cook until glaze is thickened and reduced to 1 cup, 45-50 minutes. 3) Heat a gas BBQ grill to medium-high heat. 4) Drain and transfer ribs to a large cutting board. Generously brush with glaze. Grill 5 minutes per side, brushing with more glaze as needed, until ribs are nicely browned. Sprinkle with cilantro. Serve with remaining glaze on the side.