benjamin.r.osborne1
The recipie is fine.  Notice it calls for baking powder and not soda.  I added a 1/2tsp vanilla to the recipie and they turned out great.  I had to add a bit more flour because it was too liquidy, but that is to be expected with flour at different times of the year.  I recommend using a room temp egg otherwise you get larger pockets of butter due to it condensing with a cold egg.