There is a bowl of hard-boiled eggs in a lot of American refrigerators this week, and nobody in the house wants to eat another one plain. Meanwhile, the grilled cheese is the sandwich this country actually eats: more than two billion a year, and it keeps finishing first in favorite-sandwich surveys. Those two facts solve each other. Grate the eggs on a box grater, bind them with mayonnaise and a little brown mustard, then spoon that creamy mess into a buttered, crackling grilled cheese. On paper it sounds like a dare. In the pan it behaves like a tuna melt with better manners.
Eggs And Cheese Already Live Together
Cheese and eggs show up side by side in omelets, breakfast hashes and just about every casserole your aunt brings to a potluck. Anyone who has eaten an Egg McMuffin or thrown a fried egg onto a slice of American cheese at home already knows the pairing holds. Egg salad just brings mayonnaise and mustard along for the ride, which is exactly what a tuna melt does. Chefs have been pulling grilled cheese in stranger directions for years. Bobby Flay builds his with brie and goat cheese, a green tomato and bacon. Gordon Ramsay reaches for kimchi with asiago and Romano. Set against those, a scoop of egg salad is the conservative option, and it costs a dollar or so to try.
Grate The Eggs, Don’t Chop Them
This is the one step that separates a good egg salad grilled cheese from a lumpy, sliding disaster. Running peeled hard-boiled eggs across a box or rotary grater blends the yolk and white into one another and gives you a creamy filling, which means you need much less mayonnaise to hold it together. Less mayonnaise means less liquid, and less liquid means the bread stays crisp. A microplane takes it even further and makes the eggs almost fluffy. Bring the eggs to a boil, take the pan off the heat, cover it and let them stand 12 minutes, then cool them in ice water. Use eggs that have been in the fridge a week or so and they will peel without taking half the white with them. If you like a chunkier salad, chop by hand instead of pulsing the eggs in a food processor, which turns everything into one uniform paste.
The Bread Is The Whole Ballgame
Add a wet filling to a grilled cheese and the bread has a real job to do. What works is a tight crumb with few big holes, cut somewhere between 1/2 and 3/4 inch thick, and slightly stale bread toasts better than fresh. Sourdough is the pick: the tang cuts the mayonnaise and the structure holds under heat without collapsing. Brioche-style bread works if you want richness, though sweeter loaves brown fast, so watch the pan. Skip ciabatta and baguette, since the big holes leak cheese and egg salad onto your burner and the crust fights back. Skip the ultra-soft white sandwich bread too; it goes limp the second the filling hits it. Whole-grain works fine if that is what is in the bread box.
Which Cheese To Reach For
Sharp cheddar is the default and it deserves to be, because the bite stands up to all that soft egg and mayo. A finely shredded Italian blend is the sleeper pick, the kind of store-brand bag that mixes mozzarella, provolone, Parmesan, Romano, fontina and asiago. It melts fast and glues the egg salad to the bread, which matters when you are flipping the sandwich. American, Swiss, Colby Jack, Pepper Jack and provolone all work, and mixing two is usually better than committing to one. Mozzarella melts beautifully but tastes like very little on its own, so pair it with a shower of Parmesan. Pepper Jack is the move if you want heat without adding hot sauce to the filling.
Two Ways To Build It
The first method keeps the egg salad cold. Butter both sides of your bread slices, griddle them, lay cheese on each slice, cook until golden and crisp, then pull them off the heat and spoon cool egg salad onto half of them before closing the sandwiches. Hot melted cheese against cool creamy filling is a genuinely great contrast, and it is fast enough for a weekday lunch. The second method grills everything together: egg salad on the bread, a little extra shredded cheese scattered over the top of the salad to act as glue, then butter side down in a skillet, flipped once, browned on both sides. That version is the better sandwich. Let it rest for 5 minutes on a cutting board before slicing, or the filling runs.
Season It Like You Mean It
Plain egg salad tastes plain, and melted cheese will bury it. Paprika is the mild route. Cajun seasoning is the loud one, and it belongs here. Finely minced sweet onion, a herb blend of chives, garlic, dill, parsley, shallots and red onion, and a half tablespoon of Creole or brown mustard turn a basic bowl of eggs into something worth toasting bread for. A version built for bigger flavors leans on Dijon, fresh dill and capers, with both American and cheddar cheese. Softened cream cheese stirred in with the mayo gives you a richer, smoother filling, and sweet pickle relish brightens the whole thing. For a tangier, lighter filling, plain Greek yogurt replaces the mayo measure for measure, seasoned with onion powder, smoked paprika and garlic powder.
What Goes Wrong
Heat is the usual culprit. Run the burner too hot and the bread browns before the cheese melts, leaving you with a dark crust and a cold center, so medium or medium-low is where you want to be. Too much mayonnaise is the second problem, which grating the eggs mostly fixes. Wet add-ins are the third: diced cucumber and sliced tomato are good in the filling but they weep, so stir them in right before you cook rather than the night before. Never reheat an assembled sandwich, either. The bread turns into a soggy mess, so keep the egg salad in an airtight container in the refrigerator and grill fresh bread for round two. And don’t freeze a cream-cheese egg salad; it thaws watery and grainy.
What To Put Next To It
Tomato soup, obviously. The sandwich is rich and the soup is acidic, and that has been the arrangement since long before anyone put egg salad in the middle. Potato chips and pickle spears do the same job for less effort. Coleslaw, pasta salad, a plain garden salad, fresh fruit or French fries all round it out depending on how much of a meal you want it to be. Diced pickles, green onions, bacon, sliced avocado or tomato can go into the filling itself if you want the sandwich to carry lunch on its own. My verdict, after all the variations: grated eggs, sharp cheddar, sourdough, brown mustard, grilled together in one pan. Everything else is a rerun of that.
Grated Egg Salad Grilled Cheese
Course: LunchCuisine: American4
sandwiches20
minutes12
minutesCreamy grated egg salad griddled inside a crisp, buttery grilled cheese. Leftover eggs never had it this good.
Ingredients
6 hard-boiled eggs, cooked ahead, cooled and peeled
1/4 cup finely minced sweet onion
1 1/2 cups finely shredded Italian blend cheese or sharp cheddar, divided
1/2 tablespoon mixed fresh or freeze-dried herbs (or 1/2 teaspoon dried herbs)
1/4 teaspoon kosher salt and 1/4 teaspoon ground black pepper
1/4 cup real mayonnaise
1/2 tablespoon Creole or brown mustard
8 slices sourdough or whole-grain bread, cut 1/2 to 3/4 inch thick
4 tablespoons unsalted butter, softened at room temperature and divided
Directions
- Using a box or rotary grater, grate the peeled hard-boiled eggs into a large bowl. Use a fairly fine grate so the yolks and whites blend into each other, which is what makes the filling creamy enough to need very little mayonnaise.
- Add the minced sweet onion, 1/2 cup of the shredded cheese, the herbs, salt and pepper. Toss everything together with a fork so the seasoning is spread through the eggs before any dressing goes in.
- Add the mayonnaise and the Creole or brown mustard. Mix until creamy and spreadable, then taste and adjust the salt, pepper or mustard. Refrigerate the bowl while you get the bread and skillet ready.
- Divide the softened butter evenly and spread it on one side of each of the 8 bread slices. Preheat a large skillet or griddle over medium heat, or medium-low if your bread is cut thick.
- Divide the egg salad among 4 slices of bread, spreading it to the edges on the unbuttered side. Scatter the remaining 1 cup of shredded cheese over the top of the egg salad; it melts and glues the filling to the top slice.
- Place the loaded slices butter side down in the hot skillet. Top each with a remaining slice of bread, butter side up, and press down gently with a spatula so the sandwich holds its shape.
- Cook until the bottom is well browned and crisp, then slide a wide spatula all the way under each sandwich and carefully turn it over. Brown the second side, lowering the heat if the bread is coloring faster than the cheese is melting.
- Transfer the sandwiches to a cutting board and let them rest 5 minutes so the filling sets. Slice in half and serve with tomato soup, potato chips or a pickle spear.
Notes
- The egg salad can be made up to 3 days ahead and kept in an airtight container in the refrigerator. Give it a quick stir before using.
- Do not store assembled sandwiches. They turn soggy and do not reheat well, so keep the filling separate and griddle fresh bread and cheese each time.
- Swap the cheese for American, Swiss, Colby Jack, Pepper Jack or provolone, or trade the mayonnaise for an equal amount of plain Greek yogurt if you want a tangier filling.
Frequently Asked Questions
Q: Should the egg salad go in cold or get grilled inside the sandwich?
A: Both work. Grilling it inside gives you one hot, cohesive sandwich, which is the better version. If you want contrast, griddle the buttered bread with cheese on each slice, then spoon cool egg salad on right off the heat and close the sandwich.
Q: What bread holds up best under a creamy filling?
A: Sourdough, cut between 1/2 and 3/4 inch thick. You want a tight crumb so the cheese and egg salad stay inside. Avoid ciabatta and baguette, which leak through the big holes, and skip ultra-soft white sandwich bread, which collapses.
Q: How long does the egg salad keep?
A: Up to 3 to 4 days in an airtight container in the refrigerator. Making it a day ahead actually helps the flavors settle. Do not freeze it, especially a version made with cream cheese, since it thaws watery and grainy.
Q: Can I make it without mayonnaise?
A: Yes. Use plain Greek yogurt in place of the mayonnaise, measure for measure, seasoned with onion powder, smoked paprika and garlic powder for a tangier filling. Softened cream cheese stirred in with a little mayo gives you a richer, smoother spread.
