1. Cut the butter into small pieces and soften at room temperature.
2. Add in caster sugar and beat until light yellow and the volume becomes larger.
3. Sift the low-powder, baking powder, and salt into a basin and mix well.
4. Add egg whites and stir well.
5. Grind the black pepper and add it to the basin.
6. Mix and knead into a dough, wrap it in plastic wrap and put it in the refrigerator for 1 hour.
7. After taking out the dough, use a rolling pin to roll it into a dough sheet, and use a biscuit to mold the green.
8. Put the green body into the baking pan covered with tin foil.
9. Preheat the oven at 165 degrees, bake for 20 minutes in the middle layer, turn off the remaining temperature and simmer for 10 minutes before coming out of the oven, let it cool, and put it in an airtight jar for storage.
Tips:1. Please adjust the temperature according to the temperature of your own oven.
2. During the operation, the flour should not be stirred for too long, it is easy to bake out the texture and taste discomfort.
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