What is Korea's biggest food export?
Could you please elaborate on the topic: "What is Korea's biggest food export?" I'm curious to know which particular food item stands out as the leading exporter from Korea. Is it a traditional Korean dish that has gained global popularity, or perhaps a more modern culinary creation? I'm also interested in understanding the factors that contribute to its popularity and success in the international market. Additionally, could you provide some insights into the impact of this food export on Korea's economy and whether there are any challenges or opportunities associated with it? Thank you for your assistance in answering these questions.