how to make kfc coleslaw salad|copycat kfc coleslaw salad

INGREDIENTS ;
2 cups cabbage
1/2 cup carrot
2 tablespoon chopped onion
1/3 cup sugar
1/2 teaspoon salt
1/8 teaspoon black pepper
1/4 cup milk
1/2 cup mayonnaise
1/4 cup buttermilk
2 tablespoon vinegar
3 tablespoon lemon juice