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1. Milk boil
2. After cooling slightly, stir in the egg yolk that has been evenly stirred while stirring.
3. After stirring, if it does not form a viscous shape, adjust the heat to a low heat and stir while heating. Until the milk is mushy.
4. After cooling slightly, pour in the melted butter and stir. After stirring, put it in the refrigerator
5. Stir once every half an hour. After another 1-2 hours, take a look and if it is solid, stir again. You can eat it until it becomes semi-thick and semi-solid.
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Tips:Let the milk cool down for a while, then pour in the egg yolk, otherwise it will become egg yolk flower.
