Toss together: 
apples, coarsely chopped 
celery, chopped (or celery  seed if desired) 
raisins 

Add: 
no-fat sour cream 
a small amount of honey 
a squirt of lemon juice 
a dash of cinnamon to taste 

Use amounts based on the number of apples used. Add sugar if needed because of the no-fat sour cream.