Heat oven to 350. In small bowl stir together onion dip and milk.
Place chicken in 13x9 inch baking dish. Spoon dip mixture over chicken pieces. Sprinkle crushed crackers over chicken; drizzle with butter.
Bake for 50-60 minutes or until chicken is fork tender.
Variation: Add 1 teaspoon dried parsley flakes to crumb mixture.