made this one last Halloween using Jameson’s brain shaped jello mold.  It was very large so I need to remember to double the recipe if I do that again.

1 package lemon jello

1/2 cup boiling water

1 cup chopped celery

1 small onion

2 teaspoons vinegar

3/4 cup mayo

2 cans tuna

1 small can chopped pimento

Dissolve jello in hot water.  Drain tuna & mix all ingredients.  Add cooled jello & mix well.  Pour into oiled mold.  Refrigerate.  Serve with crackers.