A little bit of charred flavor from the grill (or grill pan) and bold blue cheese make this radicchio side dish one that'll tempt all your taste buds.
Place radicchio in a large resealable bag set in a shallow dish. For marinade: In a small bowl whisk together vinegar, oil, garlic, salt, and black pepper. Pour over radicchio. Seal bag, turning to coat. Chill 1 to 2 hours. Drain, reserving marinade.
Grill radicchio on the rack of a covered grill directly over medium 8 to 10 minutes, turning occasionally until each side is lightly charred. Turn wedges cut sides up; sprinkle with cheese. Grill 2 to 3 minutes more or until cheese is softened. Drizzle with reserved marinade. Serves 8.
Or grill wedges on a grill pan over medium heat.