Wasabi mash

Wasabi works brilliantly in mash, better than European mustards, I think. I love the way its pungency strikes, threatens to blow your head off, then disappears just as panic is about to set in. The texture and richness of mash contain and cushion the effect, though not enough to take the fun out of it. How much to use is one of those personal things that only trial and error will solve for you, but the quantities below should cause a little drama. The instruction ‘stir wasabi into mashed po