Makes Generous 3/4 Cup

• 1/2 cup fat free sour cream
• 2 tablespoons red wine vinegar
• 1 teaspoon Dijon mustard
• 1/4 cup (1-oz.) crumbled Blue cheese
• 2 tablespoons minced red or green onion
• Salt and freshly ground pepper to taste

In a small bowl whisk together sour cream, vinegar and mustard; stir in cheese and onion. Season with salt and pepper. Dressing can be covered and refrigerated for up to one week. Serve on sliced tomatoes or crisp torn greens.