Fish carpaccio — paper-thin slices of raw fish fanned on a chilled plate and dressed with citrus, olive oil, and delicate garnishes — is the French interpretation of the Italian beef carpaccio applied to the poissonnier's domain. The technique requires impeccable knife skills (or the assistance of a semi-frozen fillet and a supremely sharp blade) to produce translucent slices of 1-2mm thickness through which the plate is visible. The fish must be of irreproachable freshness: sea bass (bar), sea bream (daurade), salmon, or tuna are the classic choices. Trim the fillet of skin, blood line, and any connective tissue. For ease of slicing, wrap tightly in cling film and freeze for 30-40 minutes until the surface is firm but the interior is still slightly soft — this semi-frozen state allows the knife to pass through without dragging or crushing. Using a long, thin, flexible knife (sashimi knife or slicing knife), cut paper-thin slices at a 30° angle to the cutting board, working from head to tail. Each slice should be translucent. Arrange immediately on chilled plates in a single overlapping layer (like fallen petals). Dress at the last moment before service: squeeze of lemon or yuzu, best extra-virgin olive oil drizzled from height (for even distribution), fleur de sel, cracked white pepper. Classic French garnishes include: finely shaved fennel, micro-herbs, pink peppercorns, capers, or a few drops of aged balsamic reduction. Some preparations add a light citrus vinaigrette (1 part citrus juice to 3 parts olive oil, emulsified). The carpaccio must be served within 3 minutes of dressing — the acid begins curing the fish surface, changing both texture and opacity.
Semi-freeze the fillet (30-40 minutes) for clean, thin slicing — fully frozen fish shatters; room-temperature fish drags Slice at 30° angle for maximum surface area — vertical cuts produce thick, small pieces 1-2mm thickness — you should see the plate through the fish Dress at the very last moment — acid cures the surface within minutes Chilled plate is essential — warm ceramic begins warming (and thus cooking) the fish immediately
Place each slice on the plate directly from the knife blade — picking up slices by hand warms and damages them A few drops of white soy sauce (shiro shoyu) instead of salt adds umami without visible colour For the most elegant presentation, layer the slices between sheets of cling film and gently press with a rolling pin — this thins them further and creates perfect uniformity
Slicing warm, fully thawed fish — the knife drags, the slices are uneven, and the texture is compromised Dressing too early — the fish turns opaque and firms (it becomes ceviche, not carpaccio) Using dull knives — tearing rather than cutting destroys the delicate texture Overgarnishing — carpaccio is minimalist; the fish is the star, garnishes are whispers Using thick slices (3mm+) — this is sashimi, not carpaccio; the thinness is the defining characteristic
Larousse Gastronomique; Michel Guérard, La Grande Cuisine Minceur