We liked this a lot. I used Fat Free everything and about 1/4 yellow onion in place of the green. I also doubled the garlic. We used celery and carrot sticks for dippers. DH raved on about it so it goes in my Faves and Raves book. Thanks!
This was good after it sat overnight, but I thought that the horseradish and green onions overpowered the delicate flavor of the crab...or it may have just got drowned by the creamyness--a denser texture might have worked better. Next time I'm going to omit the sour cream and reduce the mayo--that might make it a five star dip.