Shoyu ramen is a classic Japanese ramen that features a clear and savory broth made with soy sauce. The broth is typically lighter than tonkotsu ramen, but still has a rich and complex flavor. The noodles are usually thin and straight, and the toppings can include sliced pork, bamboo shoots, green onions, and a soft-boiled egg. Some recipes also call for adding a dash of sake or mirin to the broth to enhance the flavor.