Buffalo Chicken Burgers

Prepare outdoor grill for direct grilling over medium heat. In small bowl, stir mayonnaise, sour cream, blue cheese, vinegar, and Worcestershire until blended. Set blue cheese sauce aside. Makes about 3/4 cup. In medium bowl, combine chicken, celery, and cayenne pepper sauce just until blended. Shape mixture into four 3/4-inch-thick burgers. Spray both sides of burgers with nonstick spray. Place burgers on hot grill rack; cook 12 to 14 minutes or just until meat loses its pink color throughout, turning over once. Burgers should reach an internal temperature of 170 degrees F. Serve burgers on buns with lettuce and some blue cheese sauce. Serve remaining blue cheese sauce with carrot and celery sticks. Pass additional cayenne pepper sauce to serve with burgers if you like. Nutritional information is based on 1 burger without sauce Each tablespoon blue cheese sauce: About 40 calories, 1 g protein, 1 g carbohydrate, 4 g total fat (2 g saturated), 0 g fiber, 7 mg cholesterol, 110 mg sodium.