Add the mug, 1 egg and 5 teaspoons of sifted flour and mix well.
5 teaspoons of chocolate sauce (you can also melt the chocolate yourself, but the one that solidifies easily needs to be stirred quickly.
Two teaspoons of milk and 1 teaspoon of melted butter. After stirring evenly, put the liquid into the cup steadily. If there is air in it, it won't look good. Microwave oven for 3 minutes, you can fine-tune it according to the power.
A small spoon is the kind of spoon used for drinking soup. You can also buy a western-style measuring spoon or a table spoon.