Mix eggs, fine sugar, milk, whipped cream and condensed milk evenly then sieve it.
Squeeze salted egg yolk sauce onto the tart and pour in the egg mixture.
Bake in the oven at 200 degrees for 25 minutes. (the oven needs to be preheated in advance).
Place marshmallows and bake at 200 degrees for another 3 minutes.
Take them out and sprinkle them with some cheese powder.