In a medium bowl, combine mayonnaise, lemon juice, buttermilk, white vinegar, and sugar.
Whisk until creamy.
Pour dressing over cabbage mixture and toss to combine.
Stir in salt and pepper.
Refrigerate for several hours or overnight for flavors to combine.
~TIPS~ Please note that you may need to adjust the amount of dressing ingredients depending on how big your cabbage is. Use the salt, black pepper and sugar to season to your liking. Feel free to through in some red cabbage, radish or green onions. Be careful not to over season. Flavors will intensify as the coleslaw sits.