Egg salad sandwiches are one of those recipes that never really go out of style. Chopped hard-boiled eggs are folded with mayonnaise and a bit of mustard until creamy, then piled between two slices of bread. The eggs bring a rich, savory bite, the mayonnaise smooths everything into a creamy filling, and a small amount of mustard keeps it from tasting flat. Diced celery and onion add a bit of crunch, so the sandwich isn't just soft all the way through.
It's an easy recipe to make on a weeknight — once the eggs are cooked and cooled, the filling takes only a few minutes to put together with a bowl and a fork. That makes it a good choice when you want something filling without spending much time in the kitchen.
Why This Recipe Works
- Cooling the eggs before mixing helps keep the filling firm and stops warm eggs from loosening the mayonnaise.
- Using about a tablespoon of mayonnaise for every two eggs keeps the texture creamy without going soupy.
- A small amount of mustard adds flavor without taking over.
- The celery and onion give the sandwich some texture against the soft egg filling.
Make-Ahead Tip
The egg salad filling keeps well in the fridge for up to a few days, which makes it a good option to prep ahead of time. It's best to assemble the sandwiches closer to when you plan to eat them, since bread left sitting with the filling can go soft.
Serving Suggestions
These sandwiches are good on their own, or with lettuce and tomato added for freshness. They also go well alongside chips, a simple salad, or a bowl of soup, whether you're packing lunch or putting together a quick dinner.