Blue Cheese Garlic Parmesan Vinaigrette | Chopped

Ingredients

• 3 cloves garlic, unpeeled
• 1/2 teaspoon olive oil, for roasting garlic
• 3/4 cup mayonnaise
• 1/4 cup sour cream
• 1/3 cup buttermilk
• 1/3 cup olive oil
• 3 tablespoons red wine vinegar
• 1/2 cup blue cheese, crumbled
• 1/4 cup parmesan cheese, finely grated
• 1 teaspoon Dijon mustard
• 1/2 teaspoon sugar
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper, freshly ground