Trout and Cod Tornado Fish Rolls for Sous Vide
Trout contributes richer fish fat while cod gives the roll a denser, cleaner structure. Small amounts of sumac and gochugaru support the fish instead of turning it into a spicy sauce dish. It is a tidy keto prep that can be finished quickly on the grill or served after a gentle reheat.
Cut the trout (100 g) and cod (150 g) into strips about 3.5-4 cm wide, sprinkle with nitrite salt (2.5 g), and refrigerate the fish for at least a day. Spread out the collagen sheet (2 g), moisten it lightly, and arrange the fish in rows, alternating the pale and pink pieces.
Dust the fish with gelatin (0.3 g), add a little sumac (0.2 g) and gochugaru (0.2 g), then roll everything up tightly. Freeze for 2 hours, trim the ends, and divide the roll into 3 even rounds.
Vacuum-seal the rolls and cook them sous vide at 50 °C for 50 minutes. Chill the bag quickly and keep the rolls refrigerated for at least a day to stabilize.
Before serving, you can finish them quickly on the grill or give them a light smoke. If no grill is available, a gentle reheat in the bag is enough to preserve the juiciness of the fish.
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