Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/4  cup           raw cashews -- (or cooked potato)
 500      milliliters   water
   1      4 ounces jar  pimientos
   1      teaspoon      salt -- (optional)
     1/2  teaspoon      onion powder
  60      milliliters   brewer's yeast flakes
   3      tablespoons   cornstarch
   2      tablespoons   lemon juice

Preparation:

1. Place the cashews in a blender and add just enough water to cover. Blend at low speed until smooth. Add the remaining ingredients and blend again until smooth. 2. Pour into a heavy saucepan and cook at medium-high heat, stirring constantly, 7-8 minutes, until it thickens to the consistency of nacho cheese. Serve hot. Difficulty : very easy. Precision : approximate measurement OK.