STEP 1/5
Roll the egg with chopsticks and boil it so that the yolk is in the center. Boil it hard and slice it thinly like in the picture. Slice potatoes thinly, soak them in cold water, remove starch, and cook them lightly in boiling water.
STEP 5/5
Place potatoes and stir-fried onion slices in a buttered gratin bowl and pour cream sauce. Put a lot of eggs on it and put a lot of pizza cheese on it.If you have parsley powder at home, sprinkle it like that and bake it in an oven preheated to 180 degrees for 25-27 minutes. Each household's oven specifications are different, so bake them at a different time and temperature.