Butter cookie | Yu sweets researcher's recipe transcription

Put the butter that has been returned to room temperature in a bowl and mix with a rubber spatula until smooth.
Add sugar and mix.
Add egg yolk and mix further, add in several batches while shaking the cake flour, and mix well each time.

When 1 is put together, take it out and knead the dough into a stick shape.
Wrap it in plastic wrap and let it sit in the refrigerator for 30 minutes to 1 hour.

Peel off the wrap of 2 and cut into slices with a kitchen knife.

フライパンに3を並べ、10分焼く。
裏返し、さら5分焼く。
網に取り出し、粗熱を取り冷ます。