Mashed Potatoes (Low-Fat)

I get an e-mail every month from Gold's Gym to help me stay "focused" on my goal of staying fit and healthy.  This month's e-mail was focused on re-making some high-fat favorites.  I was particularly interested in the entry on mashed potatoes.  They said to use low-fat buttermilk instead of butter and cream.  I tried it this weekend.  I used about 1 cup of buttermilk to 8 or 9 boiled potatoes.  It was delicious and creamy.  I didn't miss the butter or the cream!  What a wonderful discovery!