Hotate Mentaiyaki is a popular Japanese dish that combines the richness of scallops with the umami flavor of mentaiko (spicy cod roe). To make this dish, you will need fresh scallops, mentaiko, mayonnaise, soy sauce, and green onions. Start by cleaning the scallops and removing any grit or sand. Then, slice each scallop in half horizontally to create two thin rounds. In a small bowl, mix together the mentaiko and mayonnaise until well combined. Place the scallop rounds on a baking sheet and spread a generous amount of the mentaiko mayonnaise mixture on top of each scallop. Broil the scallops in the oven for about 5-7 minutes, or until the topping is bubbly and slightly golden. Remove from the oven and drizzle with soy sauce. Garnish with chopped green onions and serve immediately. The combination of the creamy mentaiko mayonnaise, the tender scallops, and the savory soy sauce creates a delicious and satisfying dish.