Big Boy's Blue Cheese Dressing Recipe By : Gloria Pitzer Serving Size : 2 Preparation Time :0:05 Categories : Salad Dressings Copycat Amount Measure Ingredient -- Preparation Method -------- ------------ -------------------------------- 1/2 Cup Sour cream 1/2 Cup Milk 1 Cup Kraft mayo 4 Ounces Blue cheese -- crumble 1/8 Teaspoon Onion powder Use electric mixer to combine all ingredients until smooth. Tightly cover and refrigerate. Use within 10 days.