Clean, wash, drain and cut the strawberries into very small pieces. Wash and clean the rhubarb and also cut it into very small pieces. Cut the vanilla pod lengthwise and scrape out the pulp.
Put strawberries, rhubarb, jam sugar, vanilla pod and vanilla pulp in a pot. Bring to the boil while stirring, let simmer for about 4 minutes at high heat.
Remove the vanilla pod and immediately pour the jam into clean jars with twist-off lids. Close the jars, turn them upside down for about 5 minutes, then let them cool down completely. Store in a cool and dark place.
Shelf life approx. 2 years.