Rotiboy

These Malaysian buns were invented at the namesake bakery in Penang. First marketed as Mexican coffee buns, they consist of a leavened dough that is filled with butter and topped with a layer of coffee-infused buttercream. During baking, the cream top completely covers the bun and creates a thin, crispy coffee layer. The Mexican conchas allegedly inspired the bun, hence its original name. Soon after they were introduced in 1998, the buns were an instant success. Nowadays, the franchise has spread throughout Asian and Arab countries, and their signature bun is better known as rotiboy or roti kopi.