Wash and dry the salmon filet thoroughly. Place on a rack skin side down over a sheet tray. Refrigerate the fish while you prepare the cream.
Prepare the Cream
Put all ingredients in a blender, and blend until smooth.
Assemble
Remove the fish from the refrigerator. Slice into sashimi-sized thin strips. They should be thinner than what you would find on nigiri sushi. Assemble on a plate and cover with the ají cream – as much or as little as you wish. Let the dish rest in the refrigerator for 30-40 minutes for best results. This will allow the cream to “cook” the fish and infuse its flavor. Or pour it on right before serving if you wish, and prefer a more raw texture.
Add the garnishes in any way you want and serve.
Notes
Amarillo (or yellow) ají paste is preferred, but you can substitute mirasol ají paste (which is red and spicier) if you wish.One seeded serrano pepper can be substituted for the pickled ají limo if necessary.White hominy can be substituted for Choclo if it can not be found.Canchita corn is sometimes known as chulpe. The Canchitas can be made in advance. Heat a skillet (have a splatter screen available) over medium high heat. Add the oil for about 15 seconds then add the corn. Turn the heat to medium and cover with a splatter screen. The corn will “pop” but not like popcorn (they look unpopped). Cook but do not burn. Remove from the heat and salt them and set aside.