1. Soften the butter ahead of time
2. Add a little lemon juice and 30 grams of milk to the egg yolk and mix well and set aside
3. Sift into the basin, low powder, baking powder, salt, sugar, and mix well
4. Add the softened butter and 90 grams of milk, and the electric whisk at low speed will be as shown in the figure.
5. Beat at high speed for 1 and a half minutes
6. Add the egg yolk liquid prepared earlier in portions, beating completely each time, and then add another time until the addition is complete
7. Whipped up
8. Add cocoa powder and continue to beat
9. Completely beaten up
10. Pour into the mold 8 minutes full
11. Put it in the preheated oven at 170 degrees for 15 minutes
12. Baked, soft, sweet, and very moist
13. Pour melted white chocolate on the surface of the cake, sprinkle with powdered sugar, relax the decoration
