Start with a teaspoon or so of wasabi paste, mixing it in and tasting as you go before deciding whether you'd like to add more. Adjust to your liking, and for extra flare, pipe the mixture through ...

Wasabi loses its signature heat just a few minutes ... Mix together 2 teaspoons of horseradish, 1 teaspoon of mustard, 1 chopped anchovy, and a few drops of soy sauce.