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3 eggs
Water to boil the eggs
2 slices of bread
Japanese mayonnaise
Salt and pepper
Butter or oil for cooking
A bowl of iced water to submerge the eggs after they cook
Directions for making tamago sando:
Bring a pot of water to a rolling boil and turn the heat down to medium-low. Then, lower the eggs into the pot carefully with a spoon. Set your timer for eight minutes to get a jammy-runny egg yolk.
While the eggs are cooking, butter the bread slices and toast them. Note that this step is optional, but we decided to go for a light toast.
After eight minutes, transfer the eggs to the bowl of iced water to stop the cooking process. Let the eggs sit in the ice bath for a few minutes before peeling the shell off carefully.
Mash two of the peeled eggs, add some mayonnaise and season with salt and pepper. Mix these up together nicely, then spread a layer onto one slice of bread.
Slice the remaining egg into half lengthwise and place it on top of the open sandwich. Close the sandwich with the remaining slice of bread.
Slice the sandwich diagonally and enjoy your tamago sando! Wrapping the sandwich in paper is optional, but we chose to do it because it then becomes easier to hold the sandwich together after slicing.