Wash the grapes. Place them in a wide pan and using a masher gently crush them till the juice comes out of them.
Place the pan on the stove and cook over medium flame for 5 minutes till the mixture starts to bubble. Keep mashing the grapes gently while it is coming to a boil.
Take the pan off the stove and let it cool down. Transfer to a juice extractor and extract the juice from the grapes. I used my extractor attachment that came with my mixie.
Add sugar, salt to the extracted grape juice and stir until dissolved. Finally stir in club soda and Tonovin essence.
Fill the popsicle mould, insert the popsicle stick, cover and freeze them for 5-6 hours or overnight.
Before serving, place the mould in water for a minute, unmould the grape popsicles from its mould and serve immediately.
Notes
These grape popsicles need to be refrigerated for 5-6 hours before serving.