While we love many kinds of tuna salad, this classic version tops them all. The crispy celery and red onion add zest and crunch, while mayonnaise and a touch of mustard marry it all together. The lemon juice is optional as it’s not traditional, but we strongly recommend it to brighten up the flavors of the final dish.
Always use good quality white meat tuna packed in water; it provides the cleanest flavor base. Soaking the minced red onion is a crucial step to remove its harsh bite and make it more palatable. While optional, the fresh lemon juice is highly recommended as it cuts through the richness of the mayonnaise and brightens the entire salad. Be mindful not to over-mix; gently fold the ingredients together to maintain some texture from the tuna flakes and vegetables.