Those little orange bubbles are salmon roe caviar, which you may have had before on top of sushi rolls. Each bubble is a burst of salty, fishy goodness! A small container is not very expensive at the Japanese or Asian market (I paid $4.50 for enough to make 20 crackers). The trick is to rush it home, well-chilled if possible (my shop provides free ice, but you could also bring your own cooler, or buy some frozen items and make sure they're in the same bag). When you get home, put it directly in the fridge, then eat it the same day. I've borrowed from the Russians to create this fun East-West fusion appetizer. And IT'S SO EASY. Impress your guests, or just yourself!