Loaded Baked Potato Salad

1 (5-poun) bag of baking potatoes
1 (8-ounce) sour cream
1 cup mayo
1/2 cup chopped onions
1/2 cup real baclon bits
1/2 cup (1 stick) butter, melted
1 (1-ounce) envelope ranch dressing mix

Preheat oven to 400°F.
Scrub potatoes, and bake, 1 hour or until done. Let potatoes cool, peel and cut into chunks.
Preheat to 350°F
In a large bowl, combine remaining ingredients. Add potatoes, and toss gently to combine. Spoon into 13x9x2 inch baking dish. Bake 40-45 minutes, or until hot and bubbly.