Wash, slit the grapes and add to heavy bottom pan. Simmer for 10 min till they start getting loose. Add water and bring the mix to boil. Keep stirring. Remove from heat, blend to paste and place on heat again. Add sugar and let it cook on low flame for 30 min

Place a bowl in fridge for 15- 20 min. When the jam starts thickening, add a spoon on the refrigerated bowl and put it back in the fridge for 2 min. If it is not runny the jam is prepared. Pour the jam in sterilized jars and close the lid

Put in the refrigerator once the jar has been opened. Also as summer shall be here in next 2 months would recommend placing the UN-opened jars also in the refrigerator.