Wash fresh wasabi rhizome thoroughly
Trim off any rough or damaged outer skin
Use a fine grater, preferably sharkskin or ceramic
Grate the wasabi in a circular motion into a smooth paste
Let the paste rest for 1 to 2 minutes before serving
Serve immediately for the best flavor and heat
If using wasabi powder, mix it with an equal amount of water
Stir until smooth and let it sit for a few minutes before using