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Step1:Beat the eggs in a mixing bowl.

Step2:Pour in the sugar.

Step3:Whisk together until the egg sugar mixture expands to twice its original size.

Step4:Sift in the low powder and cocoa powder. Stir to make it mixed evenly.

Step5:Melt the butter. Pour into the flour paste. Stir to make it mixed evenly.

Step6:Pour the batter into a paper cup. Eight full. I have a small quantity here. It's not full.

Step7:Oven 170 degrees. 15 minutes or so. My oven is powerful. Between 15 and 20 minutes, the cake probe can be inserted without liquid.
Cooking tips:I've done a little less. You can increase or decrease it in proportion. There are skills in making delicious dishes.