Roasted Pork Loin with Roasted Garlic Vinaigrette

INGREDIENTS

• 2 tablespoons olive oil
• 3/4 cup extra-virgin olive oil
• 1/2 teaspoon freshly ground black pepper
• 1 (3 1/2 to 4 1/2-pound) boneless pork loin
• Freshly ground black pepper
• 2 heads garlic
• 1/4 cup chopped fresh parsley leaves
• 1 teaspoon salt
• 1/2 cup balsamic vinegar
• 1 teaspoon sugar
• 2 tablespoons water
• Salt