In saucepan, mix together gelatin, sugar and salt. Drain mandarin oranges; stir syrup into gelatin mixture. Place over low heat; stir constantly until gelatine and sugar are dissolved, then remove from heat. (I do this in the microwave. )
Add lemon juice, whole cranberry sauce, diced celery, and chopped nuts.
Arrange oranges in mold; spoon in cranberry sauce. (A ring mold, small Tupperware mold, or pretty crystal bowl, can be used. ) Refrigerate. Serve.
I have used this recipe since 1962, when it was given to me by a fellow employee at the Oklahoma Medical Research Foundation. My mother (80 years old in 1992) requests this every Thanksgiving. The combined flavors are very tasty.