Cut nori leaf (approx. 19 x 21 cm) from the long side into 8 strips. Form 8 balls (à approx. 30 g) from some cooked sushi rice and flatten them into round talers of approx. 4 cm Ø and approx. 1-1 1/2 cm high.
Dip hands in water in between. Coat thalers with a little wasabi if necessary. Wrap one nori strip around each of them so that the leaf protrudes about 1 cm. Strips
Fill sushi with trout caviar. Add wasabi and soy sauce.