1. Steam the salted egg yolk in a pot of boiling water for 5 minutes until it is cooked.
2. Put the butter that has softened at room temperature into the fine sugar (or powdered sugar).
3. Beat it with an electric whisk until it turns white and fluffy.
4. Sift in the steamed salted egg yolk.
5. Continue to stir evenly with a whisk.
6. Sift into the powder.
7. Grasp it evenly with your hands, and knead it into a ball.
8. Take 15 grams and squeeze it firmly, lightly roll it into a ball, and squeeze it slightly.
9. Place them on a baking tray lined with greased paper or silicone mat, leaving some gaps between the biscuits.
10. Brush the surface with egg yolk liquid and put almond slices on it.
11. Put it into the preheated oven and bake at 320F/160C for 20 minutes.
12. Bring out of the oven and let cool. Store in a jar sealed for 2 weeks.
13. The crispy and delicious food makes people unable to stop their mouths.
