These were very good, not too complicated to make if you buy store made puff pastry and look quite pretty and sophisticated. Some people might not like the idea of caviar but you could always make some with and some without. A great little appetizer for New Year's Eve with some champers!
I basically followed this recipe although instead of creme fraiche I had to use plain Greek yogurt as the store was sold out just before Christmas. I thought the yogurt was just as tasty and slightly better for you too.
For the record, I am calling these blinis but they in fact are not traditional blinis at all! From OChef: "Blini are small, yeast-leavened, buckwheat pancakes that originally come from Russia. Classically they are served with sour cream and caviar or smoked salmon". Also, one is a "blin" while 2 or more are "blini".