Atsugi Shirokoro-Horumon (厚木シロコロ・ホルモン)

Shirokoro. The name alone is half the pitch: shiro (白) means white — the color of the large intestine — and korokoro is the Japanese sound word for small round things rolling around, which is exactly what these chunky, ring-cut pieces of pig intestine look like before they hit the grill. Then they hit the grill. The outside crisps and chars. The inside goes soft and creamy and rich in a way that makes you momentarily forget you had any concerns about this at all.

I had concerns. I ate four skewers. I ordered more.

Atsugi shirokoro-horumon (厚木シロコロ・ホルモン) is Atsugi city's pride: thick-cut pig large intestine (shiro), grilled over charcoal until the exterior is caramelized and the interior is almost molten with fat and collagen. The horumon (ホルモン — offal, from the Osaka term that entered national use) tradition runs deep in Atsugi, with yakiniku-style horumon shops that have been serving this since the postwar era. In 2008, Atsugi's shirokoro won the B-1 Grand Prix, and the rest of Japan finally noticed what the city had known for decades: this is extraordinary eating.

Atsugi's offal culture and the B-1 triumph

Atsugi's relationship with horumon stretches back to the postwar years, when offal — cheap, available, flavorful — became essential eating in working-class communities across Japan. Atsugi developed a particular style: pig large intestine, cleaned meticulously and cut into thick rings rather than thin slices, grilled over high heat so the outside caramelizes while the fat inside renders and stays juicy. The thickness is the signature. Thin-cut intestine cooks differently — it can dry out, go tough. Thick-cut shirokoro retains its interior creaminess while the outside shatters. It's a textural achievement.

The B-1 Grand Prix win in 2008 was earned. Hundreds of competing regional dishes, and the judges chose this. This. Because it's the kind of food that converts skeptics in a single bite, and converting skeptics is the whole point of B-grade cuisine.

The texture that wins people over

The reason shirokoro works — really works, beyond novelty — is the contrast. The large intestine has significant fat content on the inside, which renders during grilling and creates an almost creamy interior. Cut thick, that interior fat has time to do its job while the exterior gets properly charred. The result: shatter on the outside, silk on the inside, with a deep, meaty, porky richness that's completely without the gaminess people sometimes fear from offal.

The sauce helps. Most Atsugi shops serve shirokoro with a sweet soy-based tare (dipping sauce) or simply salt and lemon — both approaches let the quality of the intestine speak, rather than covering it up.

If you've ever been converted to offal by tripe, by sweetbreads, by any braised organ that surprised you — this will convert you too. If you've never tried offal at all, Atsugi shirokoro is one of the kindest possible entry points.

How it's made

1. Source fresh pig large intestine (shiro), cleaned thoroughly — quality of cleaning determines everything
2. Cut into thick rings (korokoro) — thicker than typical horumon preparations, this is the Atsugi signature
3. Grill over high-heat charcoal, turning frequently — the fat renders and the outside caramelizes
4. Serve immediately, with tare dipping sauce and/or lemon salt on the side

Before you go — grill it properly

Your questions, answered honestly

"Is it gamey?" — No. Well-prepared shirokoro has rich pork flavor, not the metallic or funky taste people associate with poorly prepared offal. The thorough cleaning and high-heat grilling make it clean and deeply savory.

"What does the texture feel like?" — The outside crisps and chars. The inside is soft, almost creamy from the rendered fat. It's closer to a good fatty pork belly in texture than anything rubbery. The thickness makes all the difference.

"Should I use tare or salt?" — First time: tare (the sweet soy dipping sauce). It's the classic for a reason. Second time: try salt and lemon — it makes the pure pork flavor the star.

"Is horumon the same as shirokoro?" — Horumon is the general term for offal/offcuts at a yakiniku restaurant. Shiro specifically is pig large intestine. Shirokoro is the Atsugi style: thick-cut shiro, grilled korokoro-style. The name tells you exactly what it is.

What the staff will ask you

To order, just say "Shirokoro kudasai" (シロコロください) — "Shirokoro, please."

Where to eat it

• Atsugi Horumon-dori (厚木ホルモン通り) — a cluster of horumon specialty restaurants in central Atsugi, the heart of the shirokoro scene.
• Yakiniku restaurants throughout Atsugi — shirokoro appears on menus across the city; any dedicated horumon shop is a reliable choice.

Atsugi is 30 minutes from Shinjuku by express train. This is one of the more accessible B-1 Grand Prix destinations. Go on a weeknight if you can — the popular spots fill quickly.