Mayonnaise - Blue Cheese Dressing #3

[Chowhound]

1 (16 ounce) jar mayonnaise (such as Hellmann's(R)/Best Foods(R))
10 ounces sour cream
6 tablespoons milk
1 (4 ounce) package crumbled blue cheese, or more to taste
1 dash hot pepper sauce
1/8 teaspoon prepared horseradish
1/8 teaspoon garlic powder, or to taste

Combine mayonnaise, sour cream, milk, blue cheese, hot sauce, horseradish, and garlic powder in a bowl. Refrigerate 1 to 2 hours to let flavors blend.