In a medium bowl, whisk together mayonnaise, sour cream, and horseradish until smooth. If you like texture, leave a few small lumps—your call, your destiny.
Stir in Dijon mustard, apple cider vinegar, and Worcestershire sauce. The tangy trio helps balance creaminess with a cheeky bite.
Add minced garlic, smoked paprika, and pepper. Mix well. Taste, adjust salt, and decide if you want a bigger kick from hot sauce or chili flakes.
Cover and refrigerate for at least 30 minutes. This gives flavors a chance to flirt. Pro tip: the longer it sits, the better it gets.
Before serving, give it a quick stir, taste again, and adjust seasoning if necessary. Serve alongside your perfectly cooked tri tip and watch the dipping frenzy begin.