Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/2  pounds        leeks -- (about 6 cups)
                        -- washed, trimmed, and cut
                        -- into 1 in. pieces
   3      cups          chicken broth
   2                    apples -- peeled and cut
                        -- into 1/2 inch
                        -- pieces
   1                    potato -- peeled and thinly
                        -- sliced
     1/2  cup           orange juice
     1/2  cup           tomatoes -- chopped
     1/2  cup           carrots -- thinly sliced
   1      tablespoon    fresh basil or 1 1/2 t dried
     1/2  teaspoon      curry powder
                        salt and pepper to taste

Preparation:

Combine all ingredients in a soup kettle. Cover and bring to a boil. Simmer 20 - 25 minutes. Remove from heat and cool slightly. Process in batches, in a blender or processor until smooth. Reheat and serve. SOURCE: Know Your Onions