Ibaraki Anko Nabe (Deep-Sea Monkfish Hotpot & Rich Liver Dobu-jiru Broth)
Celebrated by the age-old Japanese culinary maxim "Fugu in the West, Anko in the East", Ibaraki Prefecture stands as the unchallenged capital of Anko (deep-sea anglerfish/monkfish) gastronomy. Harvested from the frigid Pacific trenches off Oarai and Hirakata Port throughout the winter months (November to March), this monstrous deep-sea dweller belies its grotesque exterior with gelatinous meat rich in restorative marine collagen and low in calories, making it Kanto’s premier winter delicacy. Artisans process the slippery, slimy fish through "Tsurushi-giri" (aerial suspension butchery) to extract the prized "Seven Precious Parts" (Nana-tsu Dougu): sweet white flesh, gelatinous skin, fins, gills, stomach, ovaries, and the crowning glory—the unctuous monkfish liver (Ankimo), hailed as the "Foie Gras of the Sea". The ultimate fisherman preparation is "Dobu-jiru": liver is dry-toasted directly against the hot iron pot base until it liquefies into a golden aromatic oil, then whisked with farmhouse miso and vegetable juices without adding a single drop of water! This thick, golden-orange liquor yields a creamy, deeply marine umami that coats the palate. Simmering within are succulent chunks of flaky white fish, collagen-rich jelly skin, silky tofu, enoki mushrooms, Napa cabbage, and scallions. At the end of the feast, steaming rice and whisked eggs are swirled into the remaining liver-rich broth to create an unforgettable "Zosui" porridge. Multi-course winter Anko banquets range from ¥3,500 to ¥7,000 per person in Oarai and Mito.