I used low fat sour cream and it tasted great. The secret is to leave the avocado somewhat chunky, in my opinion. I put the pit in the bowl with the dip so it would not brown. Thanks Martha!
This is a great guacamole, I also used lite sour cream and only had 4 avocados. I went to a 'south of the border' party and took this along with chili con queso and corn chips..everyone loved both dips, thanks for sharing.