Methods: Beat eggs according to the quantity, generally speaking, 4 eggs are the standard, and then separate the egg whites. Beat the egg whites with an egg beater and start adding a little salt. In order to highlight the sweetness, add a spoonful of sugar and continue beating. When the egg white concentration is almost the same, add the second spoonful of sugar and continue to beat. It takes about 4-5 minutes. When the egg white concentration basically meets the requirements, it will become creamy when it is stirred clockwise with chopsticks for 2-3 minutes, and the egg white paste on chopsticks will not fall off. Add 2 tablespoons of sugar, 3 tablespoons of flour and 6 tablespoons of milk to the egg yolk, stir it into paste, add creamy egg white, and stir it up and down to make the egg white and egg yolk fully blend. Put a little oil in the bottom of the electric pressure cooker, pour the stirred paste into the electric pressure cooker, shake the cooker to remove bubbles, select the "cake" function of the electric pressure cooker and wait.