Using Alabama white sauce in coleslaw maintains the dish's creaminess since it's mayo-based like traditional dressing but gives a more complex flavor. Add spicy horseradish or cayenne to the sauce ...
For the garlic dressing ... Fold in as much mayonnaise as you like, you may not need it all. Mix together and serve. The coleslaw will keep in the fridge for up to one week.
Whisk yogurt, mayonnaise, vinegar, lemon juice, and garlic in a medium bowl until smooth. Season to taste with salt and pepper. DO AHEAD: Slaw mixture and dressing can be made 8 hours ahead.