1. Prepare the required materials.
2. Wash the lemon with salt, wipe out the skin and chop it for use
3. Put the butter at room temperature until soft and add the powdered sugar.
4. Then beat the butter.
5. Add the egg whites several times.
6. Disturb thoroughly evenly.
7. Then add the lemon zest.
8. Sift in low-gluten flour.
9. Then mix it well.
10. Put it in a piping bag.
11. Line the baking tray with greased paper and squeeze the batter into the size of your fingers.
12. Put the squeezed batter into the preheated oven at 200°C, bake the middle layer for 7 minutes, take it out, let it cool, and sprinkle with powdered sugar.
Tips:The temperature of the oven should be adjusted according to your own temperature.
If you want the biscuits to be crispy, leave the biscuits in the oven to cool to hand temperature after baking, then put them in an airtight bag and seal them for storage.
