There's a reason I don't make this very often. Once I start popping this stuff in my mouth, I can't seem to stop! It's one of my favorite party-type foods to serve and I always get asked for the recipe.
1 cup mayo
1 cup yellow mustard
1 cup sour cream
1/2 cup sugar
1/4 cup dried minced onion
1 envelope ranch dressing mix
1 Tbsp. prepared horseradish sauce
1. Combine all ingredients in a medium-sized bowl until well-combined. Chill for at least 30 minutes to allow the flavors to meld (a few hours is better).
2. Serve with sourdough pretzel nuggets.
Makes about 3 1/2 cups of dip, enough for 2 bags of pretzel nuggets (I use Snyder's brand)
Source: my sister, Amy....a fellow Maven