Eating spicy food can keep you warm in winter. That's why Koreans like to eat spicy food during cold winter.
My son lives in South Korea for several years. He had already got used to Korean food. He finished a big bowl of spicy noodles in a short while. Koreans use big bowls to serve food. The big bowl of spicy noodles is my food for two meals.
The ingredients of spicy noodles are beef, onion oil, soy sauce, radish slices and spring onion. You can use the ingredients which suit your taste. Beef can be replaced with pork or chicken in case you dislike it.