*  Exported from  MasterCook  *
 
                    Sweet Potato Soup (Pressure Cooked)
 
 Recipe By     : Cooking Under Pressure, copyright 1989
 Serving Size  : 1    Preparation Time :0:00
 Categories    : Soups And Stocks
 
   Amount  Measure       Ingredient -- Preparation Method
 --------  ------------  --------------------------------
    2      tablespoons   sweet butter or oil
    1      medium        onion -- finely chopped
    3      stalks        celery -- thinly sliced
    5                    sweet potatoes (about 2 pounds) -- peeled and grated
    2      large         McIntosh apples -- peel, core, grate
    5      cups          chicken stock or bouillon -- or
                         vegetable stock or bouillon
    1 1/2  teaspoons     grated orange peel
      1/2  teaspoon      salt -- or to taste
 
 serves 6 to 8
 
 Heat the butter in the pressure cooker.  Saute the onions until soft, about 3 m
 inutes.  Add the celery and grated potatoes and toss to coat with the butter.  
 Add the grated apples, stock, 1 teaspoon orange zest, and salt.  Lock the lid i
 n place and over high heat bring to high pressure.  Adjust the heat to maintain
  high pressure, and cook for 4 minutes.  Let the pressure drop naturally or use
  a quick-release method.  Remove the lid, tilting it away from you to allow any
  excess steam to escape.
 
 If the soup seems too thin, puree about 1 third of it and stir the puree back i
 nto the soup.  Stir in the remaining 1/2 teaspoon orange zest and salt to taste
 .  Heat thoroughly before serving.
 
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