Yield: approximately 2 cups

1 cup mayonnaise
1 cup whole buttermilk
2 tablespoons prepared horseradish
½ teaspoon Old Bay Seasoning
1/8 teaspoon salt
1. In a medium bowl, whisk together mayonnaise, buttermilk, horseradish, Old Bay Seasoning, and salt. Cover, and refrigerate for up to 1 week.