Boil eggs

After cooked, throw away the egg shell

Split the egg, then put the egg whites and yolk to separate bowl

Mash the egg yolk using a fork or whisk

Cut the egg whites into smaller pieces and mash it as small as possible using a fork or whisk

Mix the egg whites and yolk

Add good amount of mayo (depends on preference, but i prefer about 2 tablespoon) to the egg mix

Add a pinch or two of salt, then mix it until even and soft texture

Spread the mix to the bread, then cut it diagonally

Your tamago sandwich is ready, enjoy!