First, make the dip.Add the the almonds, the garlic, the sherry vinegar, olive oil and half of the water to the food processor and blitz. Check consistency - see if you like it and add more or stop. I did add 150ml in the end in two parts.Chop the mint and set it aside.
Bring a pan of water to boil and add some salt. Blanch the asparagus spears for max 5 mins, until they are al dente. Remove them from the pan and serve immediately with the dip. When serving, sprinkle all the mint over the dip - you can even mix it in, but sprinkling make the plate look better.