Fresh eggs 4 - 5 then egg white yolks separate egg whites whipped to creamy and then put aside and then the yolks beaten and then put 3 two and a half (you can also moderately a little less) sugar or sugar can be put in two times and then add half a bag of milk and stirred then the beaten egg whites poured into beaten yolks and stirred and then 3 two and a half flour poured in and also divided into two times and then baking powder moderate stirred and put aside to wake up for a while 15 minutes can be done. Pour in the flour, also in two parts, and then put in the baking powder, stir well, and put it aside to wake up for 15 minutes, then you can do it Pour a little cooking oil into the bottom of the pan, wipe well, and then pour in the egg paste, cover the lid, and press the cake button, and then the cake can be ready to be cooked in 40 minutes (note that you have to open the lid of the pressure cooker immediately after it alarms, or else the water vapor will affect the quality of the cake), I've done it for more than 30 times, all of them are very successful, and it is getting better and better, so you try. Try it. Good luck.