Gilgeori toast, which literally means “street toast” in Korean, is a popular salty-sweet egg sandwich sold by many street-food vendors in Korea. For many who grew up there, it's a nostalgic snack, reminiscent of childhood. Eaten for breakfast or lunch, it’s quick, easy and adaptable. If you don’t have cabbage on hand, toss in any vegetables you have that would add crunch and flavor, such as sliced scallions or julienned zucchini. For a modern twist, try substituting the sugar with different…
