1. Pour black tea water, black tea powder, caster sugar, and salt into the milk pot and heat until the sugar melts, then cool
2. After cooling, add butter several times and stir together
3. Send it out
4. Sift in low powder
5. well mixed
6. Put it in a biscuit mold and freeze until hard, then take it out and turn to soft slices
7. Arrange the plates, leaving a space for half a biscuit between each slice
8. Bake at 140°C for 30 to 35 minutes
