Wash and clean the strawberries.

Have clean twist-off glasses ready.

Then puree the strawberries. (This step is not strictly necessary, but we prefer the jam with fewer pieces.)

Put the strawberries in a saucepan and mix the preserving sugar with the mixture. Bring everything to the boil while stirring over high heat.

Let the mixture boil for at least 3 minutes while stirring constantly!

Then add the syrup to the mixture and let it boil again briefly.

Possibly do a gel test. Pour the mixture into the jars and close immediately and turn the jars upside down for about 5 minutes.

Your delicious jam is already ready :-)

PS: I used 7 screw-top jars a 230ml.