1. Cut the butter into small pieces to soften it, add powdered sugar and some salt together to make it fluffy. Stir first to prevent the powdered sugar from splashing out.
2. Dispel fluffy into this state
3. Add the whole egg liquid in two times to beat fluffy
4. Sift in low powder, stir to fuse
5. Put in a piping bag
6. Preheat the oven, according to your own oven temperament, my oven is 120 degrees, 25 minutes
7. Crisp cookies
8. Kids like it very much
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