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Food

The iconic Father's Office Burger, now in a hand roll. Say what?

A hand roll wrapped in nori, filled with rice, dry-aged beef, melted cheese with visible char marks, and topped with a bundle of fresh arugula, photographed close-up against a white background.
The Uoichiba x Father's Office hand roll layers dry-aged beef, melted cheese, and arugula over rice, wrapped in nori.
(
Grid Vongpiansuksa
/
Courtesy Uoichiba
)

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Father's Office built its reputation on refusing to let anyone touch its burger — no substitutions, no exceptions. Just dry-aged beef, bacon fat-caramelized onions, Gruyère, Maytag blue and arugula.

Which is why a new collaboration with hand roll specialist Uoichiba had me… scratching my head.

Yes, that’s right. For a limited time, the Office Burger can be found in hand roll form at Uoichiba locations (Sherman Oaks and DTLA), packed over rice and wrapped in nori in lieu of a bun, for $16.

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The collaboration

Turns out Chef Liwei Liao (owner of Uoichiba/Joint Seafood) and Chef Sang Yoon (Father's Office) are close friends who decided to bridge their culinary worlds.

Liao says he’s actually a burger guy off the clock, and considers the Office Burger one of the most iconic in L.A.

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"I'm not even a blue cheese fan, but I enjoy it in that flavor combination with the grilled onions —it's basically French onion soup in a sauce —and then his blend of cheese," Liao said.

While the hand roll combo isn’t something you see every day, it's not a total left turn for Uoichiba. The spot already runs four Wagyu hand rolls on its regular menu (cheeseburger, tartare, shabu shabu, steak), so this slots into an existing format rather than a one-off gimmick.

A hand with a medium dark skin tone holding a nori-wrapped hand roll filled with dry-aged beef, melted cheese, and fresh arugula, photographed close-up against a blurred neutral background.
The Uoichiba x Father's Office collaboration hand roll, available through August.
(
Grid Vongpiansuksa
/
Courtesy Uoichiba
)

Does it work?

So... to my verdict on trying it. Despite its unusual format, the elements hit my taste buds, and I was immediately struck by how familiar it all felt —transported straight back to the outdoor patio of Father’s Office at the Helms Bakery building, touching upon all the same notes.

That’s not a surprise, since Liao uses Yoon’s exact Office Burger recipe. “We’re literally using his cheese, his onions, his blend,” he says.

Watching the roll get assembled, it's easy to see the level of precision involved — the dry-aged beef gets a slight char from a hand-held blowtorch, then it's layered with the onion and cheese mixture and fresh arugula, the whole thing coming together like one of Vincent van Gogh's still-life vase paintings.

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It's not a one-off, either — Liao said Uoichiba plans to keep doing chef collaborations like this on the hand roll bar about once a month.

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