Finely shred the green cabbage and grate the carrot. You can use a box grater or a food processor for a quick prep. Place them in a large mixing bowl.
2. Make the Dressing:
In a separate bowl, combine the mayonnaise, milk, buttermilk, lemon juice, apple cider vinegar, sugar, salt, pepper, and mustard powder (if using).
Whisk until the dressing is smooth and well-combined. Taste and adjust the seasoning as needed – you might want it a little sweeter or tangier depending on your preferences.
3. Toss Everything Together:
Pour the dressing over the shredded cabbage and carrots. Toss everything together until the cabbage and carrots are evenly coated in the dressing.
4. Refrigerate:
Cover the bowl and refrigerate the coleslaw for at least 2-3 hours, or overnight if you can. The longer it sits, the better the flavors meld together.
5. Serve:
Once chilled and the flavors have developed, give it a quick stir and serve with your favorite meal!
