Coleslaw

1 (160z) package coleslaw mix
2 Tbs minced onion
1/3 C white sugar
1/2 tsp salt
1/8 tsp pepper
1/4 C milk
1/2 C mayo
1/4 C buttermilk
1 1/2 Tbs red wine vinegar


Combine coleslaw and onion in a large bowl. In a separate bowl, combine rest of ingredients and add to coleslaw. Chill for one hour before serving.