Phaalse ka sharbat (blackberry downpour)

1. Preparation time: 10 minutes plus overnight soaking and 30 minutes chilling time soak the blackberries in the measured water overnight.
2. Mash the blackberries into the water, then put the mixture through a sieve.
3. Add sugar and salt and mix thoroughly.
4. Refrigerate the mixture for about 30 minutes.
5. Serve in tall glasses, topped with crushed ice and garnished with pineapple.
6. Serves: 4