Yeast Pancakes

I made these: http://theperfectpancake.blogspot.com/2007/01/yeast-raised-pancakes.html last night for breakfast this morning.  They were very light and much smoother texture than I expected.  The only modifications I made to the recipe were to add an additional Tbl of sugar (to the batter as it rose overnight in the refrigerator) and a tsp of vanilla extract (mixed into the eggs).