Egg Mayo Sandwich Ingredients and Easy Recipe

An egg mayo sandwich pairs chopped hard-boiled eggs with creamy mayonnaise, a little seasoning, and soft bread for a simple lunch or snack. This straightforward version serves two and adds mustard and lemon for a balanced filling that stays easy to customize.

Ingredients

4 large eggs (about 200 g without shells)
3 tablespoons mayonnaise (45 ml)
1 teaspoon Dijon or yellow mustard (5 ml)
1 teaspoon lemon juice (5 ml)
⅛ teaspoon fine salt (about 0.7 g), plus more to taste
⅛ teaspoon ground black pepper (about 0.3 g)
4 slices sandwich bread (about 120 g total)
1 tablespoon finely chopped chives (3 g), optional
2 lettuce leaves (about 15 g), optional

Instructions

Put the eggs in a saucepan in a single layer and add cold water to cover them by about 1 inch (2.5 cm). Set the pan over medium-high heat and bring the water to a boil. This should take roughly 6–8 minutes, depending on the pan and burner.
As soon as the water boils, cover the pan, turn off the heat, and let the eggs stand in the hot water for 10 minutes. For whole boiled eggs, cook until both yolks and whites are firm. This is the recommended doneness check for boiled eggs; a thermometer is not needed for intact boiled eggs.
Transfer the eggs to a bowl of ice water or run them under cold water until cool enough to handle, about 3–5 minutes. Peel, then pat dry. Cooling makes peeling easier and prevents warm eggs from thinning the mayonnaise.
Chop the eggs into small pieces and put them in a mixing bowl. Add the mayonnaise, mustard, lemon juice, salt, pepper, and chives if using. Fold gently until combined. Taste and adjust the salt, pepper, or lemon; keep some egg pieces intact for a pleasing texture.
Place the lettuce on two bread slices, if using. Divide the egg mixture between them, spreading it to the edges without overfilling. Top with the remaining bread slices, cut in half if desired, and serve promptly.

Tips

Use fully cooled eggs: Warm eggs can make the filling loose and may warm the mayonnaise. Cool them thoroughly before chopping and mixing.
Adjust the texture: For a smoother filling, mash the eggs with a fork; for a chunkier sandwich, chop them roughly. Add mayonnaise a teaspoon at a time if you prefer a less creamy mixture.
Choose a substitute thoughtfully: Yellow mustard works in place of Dijon, with a milder, familiar flavor. Plain Greek yogurt can replace up to half the mayonnaise, but the filling will taste tangier and less rich.
Keep the bread from getting soggy: Assemble just before eating. A dry lettuce leaf between the bread and filling also helps create a barrier, but it does not replace proper refrigeration.

Serving Suggestions

Serve the sandwich as a quick lunch with crisp cucumber, tomato wedges, carrot sticks, or a simple green salad. Potato chips, crisps, or a cup of vegetable soup make it a more substantial meal. For a tea-time spread or party platter, cut each sandwich into quarters and secure the pieces with cocktail picks. If packing lunch, keep the sandwich chilled in an insulated bag with an ice pack and eat it while it is still cold.

Variations

For a classic, mild filling, leave out the lemon and chives and use yellow mustard. Add finely sliced spring onions, chopped parsley, or dill for a fresh, herby version. A pinch of paprika or a few drops of hot sauce gives the mixture gentle warmth; add sparingly so it does not overwhelm the egg.

To add crunch, fold in 1 tablespoon (about 10 g) of finely diced celery or 1 tablespoon (about 8 g) of chopped pickles. Pickles add salt and acidity, so taste before adding the full amount of salt or lemon juice. For a richer sandwich, butter the bread lightly; for a lighter one, use whole-grain bread or serve the egg mayo in lettuce cups instead.

Storage and Reheating

Refrigerate the egg mixture or assembled sandwiches within 2 hours of preparation, or within 1 hour if the room temperature is above 90°F (32°C). Store the filling in a clean, covered container at 40°F (4°C) or below and use it within 3–4 days; for the best texture, assemble sandwiches shortly before serving. Keep assembled sandwiches tightly wrapped or in an airtight container and eat within 1 day, since bread softens as it sits.

Do not leave egg mayo at room temperature for more than 2 hours. Discard it if it has been left out longer, or if you are unsure how long it was unrefrigerated. This sandwich is served cold, so reheating is not recommended; warming it can make the mayonnaise separate and the bread soggy.

Frequently Asked Questions

How many eggs do I need for two sandwiches?
Use four large eggs for two generously filled sandwiches, or about two eggs per sandwich. If you prefer a thinner filling, use three eggs and keep the other ingredients nearly the same.

How do I stop egg mayo from being watery?
Cool and dry the peeled eggs before chopping, and avoid adding too much mayonnaise or lemon juice at once. If the mixture is already loose, fold in another chopped hard-boiled egg rather than adding bread crumbs.

Can I make the egg filling ahead?
Yes. Prepare it, cover it, and refrigerate it promptly for up to 3–4 days. For the freshest sandwich, wait to spread it on the bread until just before serving.

Can I use a different kind of bread?
Yes. Soft white or whole-wheat sandwich bread works well, as do seeded bread, rolls, or toasted slices. Sturdier bread holds a generous filling better; toast it only if you want a crisp contrast.

Can I make egg mayo without mustard?
Yes. Leave it out and season to taste with salt, pepper, and a little extra lemon juice. The filling will be less tangy, so add the juice gradually and taste as you go.

Is it safe to pack this sandwich for lunch?
Keep it at 40°F (4°C) or below in an insulated lunch bag with an ice pack, and refrigerate it as soon as possible. Do not leave it at room temperature for more than 2 hours, or more than 1 hour in temperatures above 90°F (32°C).

More recipes to cook

Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

Spotted an error? Tell us and we will correct it (corrections policy).