Let the cane sugar caramelize. Stir constantly so that it doesn`t turn too brown. Cut the pumpkin and pineapple into not too large pieces and add. Let it caramelize a little. Then add the juice, the scraped pulp of the vanilla pod, the pod and the chopped ginger and bring to the boil. Cook everything very soft. This takes about 15-20 minutes. Now remove the pod and mix everything until smooth with the hand blender. Add lemon juice and preserving sugar and after boiling cook according to the manufacturer`s instructions. Possibly add a little juice or water if too much liquid has evaporated during cooking. Make a gel test. Fill into prepared twist-off jars and close immediately. Turn upside down for 5 minutes.
Makes 4 glasses of 230 ml each. The small remainder is for snacking and trying.
Tip:
If the fruit puree still lacks acid, you can add a little citric acid. I added 2 teaspoons of citric acid.