1. Mix low powder and cocoa powder and sieve twice.
2. Cut the butter into small pieces and soften at room temperature.
3. Add powdered sugar and vanilla sugar, and beat with an electric whisk until the color turns white and the volume becomes larger.
4. Add egg liquid three times and mix well.
5. Sift in the powder and mix until the dry powder disappears to form a cookie batter.
6. The cookie batter is put into a piping bag, and a serpentine curve is extruded on the baking oil paper.
7. In the middle of the oven, 180 degrees, it will be out in about 12 minutes.
Tips:1. The cookie baking time is short and easy to bake, especially when the squeezed biscuits are small, they will be cooked in seven or eight minutes. So be sure to watch it in the last few minutes, and you can take it out after baking it to the degree of coloring you like. Especially for cocoa cookies, the color change is not obvious during the baking process, so you need to be careful not to overbake it.
2. Cocoa cookies can adjust the proportion of cocoa powder according to your preferences, but if it exceeds 30 grams, it will make the cookie taste bitter.
3. When using a piping bag to squeeze out the cookie batter, it sometimes feels sensational, which is very laborious. There are two possibilities for this situation. One is that the butter is not completely softened and the batter is dry and hard, so be careful, be sure to wait until the butter is completely softened before sending. The second is that the water absorption of flour is different, resulting in a relatively dry batter. In this case, you can add a small spoonful of egg liquid to make the batter soft and hard.
4. Don't beat the butter too shabbyly when whisking the butter, and control the total time to beat it to about 2 minutes. If the butter is too fluffy, it may cause the pattern to disappear after the cookies are baked.
5. Powdered sugar can reduce the extensibility of the dough and help keep the cookie pattern. Fine sugar can increase the crispness of the biscuits. Both are indispensable.
