A Cuban sandwich is characterized by its layered fillings (mojo-marinated roast pork, glazed ham, Swiss cheese, pickles, and mustard) on Cuban bread, pressed and grilled until the bread is crispy and the cheese is melted, creating a warm, savory, tangy, and buttery sandwich with a distinct crispy crust and soft interior. It seemed that Cuban-style sandwiches in Japan were created by DAY WORK & COMPANY・TOKYO in Niigata Prefecture with their CHEAT DAY brand around 2018. The inclusion of a spicy sauce suggests a departure from the traditional recipe, creating a flavor profile that appeals more to the Japanese palate.
The Cheat Day Kofu, Kofu-city, Yamanashi, 01/14/2026
The CHEAT DAY in the city of Niigata: https://www.daywork-ct.com/cheat-day;
Cuban sandwich: https://en.wikipedia.org/wiki/Cuban_sandwich
Mojo (sauce): https://en.wikipedia.org/wiki/Mojo_(sauce)#:~:text=In%20Cuban%20cooking%2C%20mojo%20applies,fried%20cassava%20(yuca%20frita).