Step1:Soften butter, add sugar and beat slightly.
Step2:Add the egg liquid in several times. Each time, wait until the eggs and butter are completely mixed, and then add the next time.
Step3:Sift in the cocoa powder. The mixture of low powder and baking powder. Use a rubber scraper to turn it up from the bottom. Then knead it into a smooth dough.
Step4:Leave the dough in the fridge for half an hour.
Step5:Roll the loose dough into a coin thick piece. Press it into the shape you like with a biscuit mold. Preheat the oven 180 degrees. Bake for 10 to 12 minutes.
Step6:Mix the egg white and sugar powder and beat until the dripping pattern doesn't disappear immediately.
Step7:Put the frosted sugar into the flower mounting bag. Cut a small mouth and draw the pattern you like on the biscuit.
Cooking tips:Eggs should be added in batches. At least twice. You can also add your favorite color to the icing. I didn't take a picture. But the biscuit making is simple. You can try it. There are skills in making delicious dishes.