16 ounces sour cream
16 slices (12-ounce package) bacon, cooked and crumbled
8 ounces sharp cheddar cheese, shredded (about 2 cups)
1/3 cup thinly sliced scallions or chives
Combine all ingredients in a medium bowl and refrigerate for at least one hour before serving to allow flavors to meld together. Garnish with extra shredded cheese, crumbled bacon, and chopped chives.