PreparationFor relish: Preheat oven to 400°F. Place each head of garlic, cut side up, in center of square of foil; drizzle each with 1 teaspoon oil. Enclose garlic in foil. Place packets on oven rack; roast until garlic is tender, about 45 minutes. Open packets; cool 15 minutes. Squeeze garlic cloves into small bowl. Mash enough roasted garlic to measure 1/4 cup (reserve remaining garlic for another use). Transfer 1/4 cup mashed garlic to bowl. Mix in 3 teaspoons oil, red peppers, and parsley. Season with coarse salt and pepper. For hot dogs: Arrange buns on plates. Top each with grilled hot dog, then cheese, garlic relish, and drizzle of vinegar. A Spanish cheese made from sheep's milk; available at some supermarkets and at specialty foods stores.
PreparationFor relish: Preheat oven to 400°F. Place each head of garlic, cut side up, in center of square of foil; drizzle each with 1 teaspoon oil. Enclose garlic in foil. Place packets on oven rack; roast until garlic is tender, about 45 minutes. Open packets; cool 15 minutes. Squeeze garlic cloves into small bowl. Mash enough roasted garlic to measure 1/4 cup (reserve remaining garlic for another use). Transfer 1/4 cup mashed garlic to bowl. Mix in 3 teaspoons oil, red peppers, and parsley. Season with coarse salt and pepper. For hot dogs: Arrange buns on plates. Top each with grilled hot dog, then cheese, garlic relish, and drizzle of vinegar. A Spanish cheese made from sheep's milk; available at some supermarkets and at specialty foods stores.