What is rayu?

Rayu, also known as la-yu or chili oil, is a hot oil condiment commonly used in Japanese cuisine. It is made by infusing vegetable oil with hot red pepper flakes, garlic, and sesame seeds. Some variations may also include ginger, scallions, and other spices.

Rayu is used as a flavoring agent and a topping for various dishes, including ramen, gyoza, steamed rice, and grilled fish. It can also be used as a dipping sauce for dumplings and tempura.

Rayu is typically hot and spicy, with a complex savory and nutty flavor. However, the level of spiciness and the flavor profile may vary depending on the ingredients and the method of preparation.

Rayu is widely available in Japanese grocery stores and online, but it can also be made at home using simple ingredients and techniques.