1. To soften the butter, add granulated sugar, milk powder, salt, and egg yolk to mix well and smoothly.
2. Add water.
3. Stir slightly, not too much.
4. Sift in the mixture of low flour and baking powder.
5. Use a spatula to mix into a moist batter and add the chocolate beans.
6. Mix well. The dough is very sticky at this time.
7. Roll the dough into a 1.5 cm round cake with the help of some low flour.
8. Cut into 8 portions.
9. Carefully move to the baking tray. And brush with a layer of egg yolk liquid. (The egg yolk can be diluted with water)
10. Preheat the oven at 175 degrees for about 18 minutes, until the surface is golden.
11. Finished picture
12. Finished picture
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