Cranberry Tuna Salad

I love the cranberry tuna salad at Whole Foods!  It is addictive, which is something that I never would have thought that I would say about tuna salad.  While searching around, I discovered that I am certainly not alone and many have tried to recreate this salad.   I am not sure how close this came to the Whole Foods recipe but it sure was delicious.  There may not be dill in the Whole Foods recipe but I like the flavor.  I came across variations with additions of celery, carrots, lemon juice, parsley, and slivered almonds.  The combination of tuna and cranberries is so good! 

2 cans albacore tuna drained and finely flaked
Hellmann's mayonnaise to taste (I used about 1/3 cup)
1 small onion diced
1/3 tsp. dried dill
3 tablespoons dried cranberries