Waffles... They're usually a pricey option on breakfast/brunch menus at sit-down restaurants, there's the Waffle House, there are the make-your-own stations at the breakfast bars of budget to mid-price hotels (sadly, these are usually overrun with kids and/or parents who do not follow the simple directions and inevitably f*** up waffle after waffle after waffle or the waffle makers themselves), there are the chicken 'n' waffle restaurants... Oddest of all are the waffles sold at Vietnamese sandwich shops (often the most affordable waffles in the area, too).
Waffles are street food in parts of Vietnam. My favorite bahn mi shop has two waffle irons and freshly made batter at the ready for walk-ins. They will make you a waffle to order in minutes and hand it to you in a folded piece of pastry paper. They're favored by the younger crowd and eaten plain. Be forewarned, bánh kẹp lá dứa are not your mothers' waffles. The batter is made with coconut milk and pandan (the juice of Pandanus amaryllifolius leaves), which make the finished waffles green-brown in color. The Malay and Indonesians use a similar recipe to make little cakes.