Sashimi Tuna, Horseradish Cream and Aquaculture Caviar Pearl

Name: Sashimi Tuna, Horseradish Cream and Aquaculture Caviar Pearl
Cuisine: Australia
Ingredients: 20 g (¾ oz) Aquaculture Sturgeon Caviar; 10 ml (¼ fl oz) Grapeseed Oil; 50 ml (1¾ fl oz) White Soy Sauce; 250 g (9 oz) Centre-Cut Sashimi-Grade Tuna, cut into a 15 cm (6 inch) Long, 5 cm (2 inch) Round Cylinder (Ask Your Fishmonger to do this for you); Fine Sea Salt; 100 g (3½ oz) Crème Fraîche; 10 g (¼ oz) Finely Grated Fresh Horseradish