Ruibe (Hokkaido Frozen Salmon Sashimi)
Quick answer
- Total time
- 15 min
- Level
- Medium
- Servings
- 4 servings
- Ingredients
- 3
About this dish
Ruibe is a Hokkaido fish dish in which salmon or trout is frozen solid, sliced thinly without thawing, and eaten while still icy.
Read more
The first bite is firm and cold, then the fish softens in the mouth and releases its oil and tender texture. The method is associated with Ainu foodways that preserved salmon in snow through severe winters. Its name is commonly explained through the Ainu words ru, meaning to melt, and ipe, meaning food. Because the fish remains raw, ordinary fresh salmon briefly placed in a home freezer is not suitable. Use salmon sold for raw consumption that has already completed validated parasite-destruction freezing, keep it frozen while cutting with sanitized tools, and serve immediately with grated mountain horseradish and soy sauce.
Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Season
Check the salmon label for raw-consumption use and completed parasite-destruction freezing.
Keep the 300g block frozen until cutting, and do not refreeze a product that has already thawed for use as ruibe.
- 2Finish
Wash hands, then clean and sanitize the cutting board, knife, tongs, and plates with boiling water or food-safe sanitizer.
Let them dry fully, use a board reserved for fish, and prevent contact with other foods.
- 3Season
Unwrap the frozen salmon and wipe away only surface ice crystals with clean paper towel.
If skin remains, keep the fish solidly frozen, lay the knife nearly flat, and slide it between the flesh and skin.
- 4Finish
Without sawing back and forth, draw the knife in one long direction to slice the salmon 3 to 4mm thick.
Arrange each slice immediately on a chilled plate without overlapping.
- 5Finish
Scrub 20g mountain horseradish and grate it finely just before eating.
Divide the salmon, grated horseradish, and 30ml soy sauce among 4 plates and eat immediately before the fish thaws.
Practical Cooking Checks
The cues that matter most while cooking.
- Key technique
- Three hundred grams raw-consumption salmon with validated parasite freezing
- Finish cue
- Scrub 20g mountain horseradish and grate it finely just before eating.
- Avoid this
- Do not use salmon without a verifiable freezing history and raw-consumption label, briefly home-frozen fish, or fish with altered odor or color.
- Storage and reheating
- Freezing does not reverse spoilage.
Cooking decision evidence
Calculated Charim data and applicable official food safety guidance.
This recipe
15min, 3 ingredients
Category median
22min, 7 ingredients
Based on 261 recipes