Buttermilk Dressing for Slaw

I've been making coleslaw nearly every week since our CSA, Community Supported Agriculture, began.  It's the greatest thing to take to a summer cookout.

Here's what I've been doing:

1 small head of cabbage, finely sliced, 

1 small onion, finely sliced

4-5 medium to large carrots, shredded1/4 cup of fresh parsley, chopped (I do hand chop)

Sometimes I put in a few shredded radishes

I yoinked this dressing recipe from the Smitten Kitchen Broccoli slaw recipe:

1/3 cup Mayo1/3 cup Buttermilk2 Tablespoons Apple Cider Vinegar1 Tablespoon Sugar1 teaspoon SaltBlack pepper to taste