Onomichi Ramen: Hiroshima Prefecture's Flat-Noodle Seaside Style

Onomichi ramen is a beloved coastal style from Hiroshima prefecture, combining a clean soy-sauce broth with local seafood dashi and rich pork back fat. Explore this unique seaside bowl.

Tucked away along the scenic coast of the Seto Inland Sea, the historic port town of Onomichi in Hiroshima Prefecture is famous for its steep temple walks, resident stray cats, and its outstanding regional noodle style. Onomichi ramen is a brilliant exercise in culinary contrast: pairing a clean, ocean-scented soy sauce and seafood broth with thick, flat, chewy noodles, and finishing the bowl with large, melt-in-your-mouth cubes of rendered pork back fat (seabura).

The Marine Umami of the Seto Inland Sea

What defines Onomichi ramen and separates it from Tokyo-style shoyu ramen is the inclusion of local seafood in the stock. The soup is a double broth, combining a slowly simmered chicken bone and pork bone stock with a delicate, briny dashi brewed from small dried fish (typically sand lance or baby sardines) harvested from the Seto Inland Sea. This creates a clear, amber-coloured soup that is light, savoury, and deeply aromatic.

The Richness of Seabura (Pork Back Fat)

While the underlying broth is clean and sea-scented, the addition of seabura (large chunks of pork back fat) transforms the bowl. These soft, white cubes float on top of the hot soup, creating a rich layer that seals in the heat. When eaten, the fat cubes melt on the tongue, adding a sweet, buttery richness that coats the flat noodles and balances the salty intensity of the dark soy sauce tare.

Key Attributes of the Onomichi Style

• Seto Fish Dashi — Brewed from local coastal fish, providing a gentle marine umami.
• Flat, Straight Noodles — Unlike wavy Tokyo noodles, Onomichi noodles are flat, offering a silkier mouthfeel.
• Floating Pork Fat (Seabura) — Rich, melt-in-the-mouth back fat cubes that add texture and flavour depth.
• Aged Shoyu Tare — A dark, robust soy sauce seasoning that anchors the double broth.

How to Eat Onomichi Ramen in Hiroshima

While making a pilgrimage to Onomichi's narrow coastal streets is the ideal food trip, you can find outstanding authentic versions of this style throughout Hiroshima City. Explore mapped options and reviews on our dedicated Hiroshima Ramen Guide.

Frequently Asked Questions

Does Onomichi ramen taste fishy?

No, the fish dashi is blended with chicken and pork stocks, providing a clean, subtle oceanic depth rather than a strong fishy taste.

Why are flat noodles used in Onomichi?

The flat, straight noodles present a larger surface area, allowing them to cling onto the floating pork fat cubes and broth with every bite.