Ika sōmen (イカそうめん, 烏賊素麺, いかソーメン, "squid noodles") refer to a type of sashimi that is made from raw squid cut into fine strips, vaguely resembling sōmen type noodles. They are typically served with grated ginger and soy sauce[1] or a soy sauce-based mentsuyu sauce. They are slurped up,[1][2] much in the way that noodles are eaten according to Japanese custom.
It is considered a specialty of Hokkaido, especially Hakodate, a fishing port where large catches of squid are hauled, though this regional notion has been challenged by availability in wider markets driven by commercialism.[3]
Nomenclature
The ika sōmen is not sashimi according to some sources, one such culinary reference making the comparison that while the squid is suited for the ika sōmen, the thicker-fleshed cuttlefish is more palatable for making into sashimi.[4] However, it has also been pointed out that ika sōmen is synonymous with ito-zukuri[5] or "thread cut", which is a technique in sashimi-slicing.[6]
The name gained currency only in modern times. Hokkaido native and author Junichi Watanabe remarked in Kore wo tabe nakya—watashi no shokumotsushi ("Gotta eat this, my food history", 1995) that the term ika sōmen came into popular use only recently, adding that it is "nothing more than thinly sliced squid sashimi".[7] In 1970, poet Kusumoto Kenkichi [ja] described a dish identical to ika sōmen ("a bowl (donburi) full of raw squid sliced like tokoroten noodles, with grated ginger and soy sauce") but mentioned that it went by the nickname umi no sōmen or "sōmen noodles of the sea".[8][9][a]
The squid's fillet is cut into half (or into thirds) and then into strips. Some cookbooks insist that the strips must be cut vertically along the "length of the squid along the grain" to prevent it from becoming overly chewy.[1] The name suggests the strips resemble sōmen, i.e., as thin as vermicelli.[1][4] Even though some sources take this literally,[11] the description above likening it to "tokoroten" noodles[8] suggest thicker strips, as do recipes that call for "5 mm (0.20 in) widths".[12]
The typical way it is served is to have these "noodles" heaped in a bowl (donburi),[8][11] accompanied by grated ginger and soy sauce,[1][4] or a soy sauce-based noodle sauce, called mentsuyu.[11] Lately, it may also be served on a flat dish even in Hakodate, Hokkaido,[11] and eaten with wasabi and soy sauce,[12] which is then no different from squid sashimi ito-zukuri style.[5][6]
At port towns where the caught squid are brought ashore, the freshly caught squid are semi-translucent,[2] have excellent texture, and are "marvelously sweet, especially the morning-caught squid shipped alive".[2]
In Japan, the abundantly caught surume ika or Japanese flying squid, available from early summer onwards, is used to make this dish.[2][11][13] In practice, other (more expensive) squid species are sometimes substituted, such as the yari ika (spear squid) or the aori ika (bigfin reef squid).
The ika sōmen has also become widely available prepacked in Japan.
As with uncooked seafood in general (see Sashimi#Safety), eating this dish made from raw untreated squid poses some risk of contracting anisakiasis, since the parasite when present in the animal infests the flesh of its body (mantle).[14]
^村田, 以和夫 (Murata, Iwao) (2003). "アニサキス症と天然物由来の有効化学物質の検索 (Anisakiasis and The Screening of Larvicidal Compounds from the Nature Remedies for Anisakis simplex)". 東京健安研セ年報 (Ann. Rep. Tokyo Metr. Inst. PH). 54: 4. スルメイカは2～24 %台と寄生率は他の魚介類より低率であるが，外套膜筋肉中の可食部分から全て検出されたもので，イカ刺・イカそーめん等調理法による感染の危険性は高い{{cite journal}}: CS1 maint: multiple names: authors list (link)
