Egg salad sandwiches (sando) are a staple of convenience stores called “konbi” in Japan. This is my version which I have made with mayonnaise and Dijon mustard, but there are other types of sandwich spread that come to mind: Kewpie (a Japanese brand) mayonnaise, wasabi mayo, even Sriracha mayo. The last two add considerable zing if your palate so desires.
But, you say, boiling eggs is such a pain. More precisely, peeling hard boiled eggs is a frustrating chore. Despite chilling in cold water, the shells never seem to come off without a chunk of egg coming away with it. However, I have a new method to boil eggs that will make peeling them a breeze, thanks to Kenji Lopez-Alt’s research on how to make perfect boiled eggs that are easy to peel.
6 large eggs
1 quart saucepan
steamer basket
Fill the saucepan with 1 inch of water. Put the steamer basket, if using, in the pot and bring to a vigorous boil over medium heat. Using a spider or slotted spoon, carefully lower four eggs one at a time into steamer basket in the boiling water. The water does not have to cover the eggs. Cover the pot and continue boiling vigorously over medium heat, 12 minutes for hard boiled eggs. When the eggs are done, remove from the heat source and let them cool until you can handle them safely. Don’t throw off the water.
Bring the water in the pot back to boiling. Lower the remaining two eggs into the basket. This time, only cook them for 6-8 minutes to achieve a custard-y yolk. Six minutes will get a more liquid yolk. Eight minutes will be firmer.
Crack the egg shells all over then peel. Set the eggs aside in a medium bowl to cool to room temperature.
Japanese Egg Salad Sandwich
Yield: 4 sandwiches
2 tablespoons mayonnaise of choice
Salt and Freshly ground pepper
2 tablespoons celery, onion, scallions and/or cilantro, finely chopped, optional
Dijon mustard
8 slices of soft sandwich bread, thinly sliced. Japanese milk bread is traditional but I’ve used whole wheat sandwich bread
Crush the hard boiled eggs with a potato masher or pastry blender. Season with 2 tablespoons mayonnaise. Add salt, pepper, and celery/onion/scallions/cilantro, if using, to taste. As a guideline, use enough mayo to make the egg salad spreadable without falling apart. Chill 30 minutes or more to firm up. Slice the soft boiled eggs in half and chill 30 minutes or more or until you are ready to make the sandwiches.
To assemble, take two slices of bread and stack them. Trim the crusts and discard. Open the bread and spread mayo on one side and Dijon mustard on the other. Spread a thin layer of egg salad on either the mayo or the mustard side. Place an egg half in the middle and mound more egg salad around and on top. Cover with the other slice of bread. Chill, covered, to firm up the egg salad sandwich. Repeat with the remaining bread slices, egg salad, and egg halves. When ready to serve, slice each sandwich with a serrated bread knife. Use a sawing motion to cut the sandwich right through the middle.