eggslut, the Los Angeles-based egg specialty café, is offering a limited run of the UNATAMA Egg Sandwich at its Shinjuku Southern Terrace location. This special sandwich features fluffy grilled eel paired with creamy scrambled eggs and is available starting July 11.
Designed for diners who want a unique Japanese summer dish without a long wait, the UNATAMA Egg Sandwich comes in three sizes and is complemented by a limited-edition collaboration with Yawataya Isogoro, a historic shichimi spice maker. Customers can also enjoy the spice inside the café to customize their flavor experience.
About eggslut’s UNATAMA Egg Sandwich

eggslut’s UNATAMA Egg Sandwich celebrates the Japanese tradition of eating eel on “Doyo no Ushi no Hi” to beat summer heat. The sandwich combines tender, grilled eel glazed with savory sauce and the brand’s signature creamy scrambled eggs. Three variations are available: the standard, deluxe, and premium, with the premium featuring a whole eel and additional toppings like a special Nara-zuke mayo and fresh mitsuba herbs for a refreshing finish.


Highlights
- The premium UNATAMA Egg Sandwich includes an entire grilled eel, fermented pickled melon mayo, Gouda cheese, and a soft over-medium egg yolk.
- The deluxe version uses half an eel with Gouda cheese and mitsuba for a rich yet refreshing taste.
- The standard size offers chopped grilled eel for a lighter portion, perfect for casual enjoyment.
- Limited-edition original shichimi spice tins in collaboration with Yawataya Isogoro are available in two varieties: classic shichimi togarashi and yuzu shichimi.
- The spice can be sampled in-store to enhance the sandwich’s flavor.
Menu and Event Details
| Item | Details |
|---|---|
| Name | eggslut Shinjuku Southern Terrace |
| Menu / items | UNATAMA Egg Sandwich Standard ¥1,750 (tax included); UNATAMA Egg Sandwich Deluxe ¥2,398 (tax included); UNATAMA Egg Sandwich Premium ¥4,048 (tax included); Original Shichimi Spice Tins (Classic and Yuzu) limited quantity |
| Location | Shinjuku Southern Terrace, Tokyo |
| Address | 2-2-1 Yoyogi, Shibuya-ku, Tokyo |
| Period | From July 11, 2026 |
| Price | ¥1,750 – ¥4,048 (tax included) for sandwiches; limited-edition spice tins price not specified |