There is no better way to fill up on your daily oil intake in Seoul than with deep-fried street food snacks, or twigim. It’s everywhere: The post-war influx of food aid made flour and oil readily available in South Korea, quickly turning a holiday food into a commonplace street food. These days, lots of twigim sold in Seoul are mass-produced, but Sak was popularized for making their food in-house and fresh (yes, we never thought we’d describe twigim as fresh). Your arteries may not thank you, but your taste buds will—try the fried kimbap (seaweed rolls), fried squid balls, and our favorite, the fried stuffed peppers. You can also order a side of ddeokboggi, rice cakes (often made with flour) bathed in a sweet and spicy sauce. Tip: when ordering a plate of twigim, ask them to pour some of the ddeokboggi sauce on top for an extra kick.