• Step 1: In a medium bowl, whisk together the mayonnaise, sour cream, white vinegar, sugar, Dijon mustard, salt, and black pepper until well combined.
• Step 2: Taste the dressing and adjust the seasoning as needed, adding more salt, pepper, or sugar to achieve your desired flavor balance.
• Step 3: Cover the bowl and refrigerate the dressing for at least 30 minutes to allow the flavors to meld and the dressing to thicken slightly.
• Step 4: When ready to serve, toss the dressing with shredded cabbage and carrots to coat the coleslaw evenly. Refrigerate until ready to serve.