Prize-Winning Ribs (from Next Food Network Star/Bon Appetit Mag.)

I Loooooooves me some bone suckin' ribs.

3 tablespoons extra-virgin olive oil
3 garlic cloves, peeled
2 1/4 cups ketchup
1 3/4 cups low-salt chicken broth, divided
7 tablespoons soy sauce, divided
6 tablespoons (packed) dark brown sugar
4 1/2 tablespoons mild-flavored (light) molasses
3 tablespoons red wine vinegar
4 large racks baby back pork ribs (each about 2 1/2 pounds)
8 tablespoons chili powder, divided

Heat oil in medium saucepan over medium heat. Press garlic through garlic press into pan. Stir 30 seconds. Mix in ketchup, 3/4 cup broth, 3 tablespoons soy sauce, brown sugar, molasses, and vinegar. Bring sauce to simmer. Reduce heat to medium-low; simmer until reduced to 3 cups, stirring occasionally, about 15 minutes. Transfer to bowl. DO AHEAD Can be made 1 week ahead. Cover and chill.

Sprinkle each side of each rib rack with salt, pepper, and 1 tablespoon chili powder. Arrange 2 racks on each of 2 large rimmed baking sheets.
DO AHEAD Can be made 1 day ahead; cover and chill.

Position 1 oven rack in top third of oven and 1 rack in bottom third; preheat to 450°F. Pour 1/2 cup of remaining broth and 2 tablespoons of remaining soy sauce around ribs on each sheet; cover each with foil. Bake ribs 30 minutes; reverse sheets. Bake ribs until tender, about 45 minutes longer. Uncover; cool slightly. Cut each rib rack between bones into individual ribs. Brush ribs generously with sauce.
DO AHEAD Can be made 2 hours ahead. Let stand at room temperature.

Prepare barbecue (medium-high heat). Grill ribs until heated through and slightly charred, turning occasionally and brushing with more sauce, about 10 minutes. Pile ribs on platter.