In a small bowl, mix the onion with sour cream and lemon juice. Place 1 blini on each plate, spread it with 1 tablespoon of the sweet-onion sour cream, and pile the trout on top. Top with caviar.
That said, many use the term caviar to refer to roe from other types of sturgeon and fish such as salmon, paddlefish, trout, ...
This snack platter layers tasty dill crisps with smoked trout, soured cream, dill and onion. It's a party dish you can make on location in a few minutes. Add a few spoonfuls of caviar for the ...