Mom's Cole Slaw

1 medium head of green cabbage shredded (I find my food processor is the best tool)
3-4 medium carrots shredded
1/2 cup mayo
1/2 cup plus 3 tablespoons miracle whip
milk to thin the dressing out
2-4 tablespoons sugar to taste
S & plenty of fresh cracked pepper to taste
1-2 tablespoons creamed horseradish (Kristan's addition, optional)
4 scallions sliced (Kristan's addition, optional)
1/4 cup chopped parsley (Kristan's addition, optional)

Whisk mayo, miracle whip, sugar, horseradish, salt, and pepper together. Thin with milk. Pour over shredded cabbage, carrots, scallions, and parsley.