2. Soften the butter with water and add the egg mixture. Pour the flour into a basin and add sugar.
3. Beat the eggs into the basin.
4. Add green tea oil to make dough.
5. Add chocolate beans.
6. Knead the chocolate beans evenly into dough.
7. Put the dough on the chopping board, roll it into thin slices and cut it into small squares. The oven temperature of each family is slightly different, so the baking time and temperature should be adjusted according to the situation.