i only have a french recipe but will translate if you like
Ingredients (for 6 jars of 500g):
- 2 kg of chestnuts
- 1.5 kg of sugar
- 2 cups water
- 1 vanilla bean
Preparation:
Make a circular incision on the chestnuts (on the top ).
Place chestnuts in a saucepan. cover with cold water. bring to the boil.
Boil a few minutes.
Remove from heat and take out 2/3 of the chestnus, leaving the rest in the pan of hot
Next put chestnuts in a pan containing 1 / 2 liter of warm water. Cover and cook over low heat a few minutes. To check for doneness: when they crush easily, they are cooked.
Drain and pass through a sieve manually or whizz in a food processor Keep warm.
make a syrup with the sugar and water.Bring to the boil and test for a set. (Soft Ball stage)Pour over the hot puree. Add vanilla bean .
Heat gently, stirring. Boil 15 to 20 minutes. The mixture should be thick and stick to the spoon. Remove the vanilla.
Place in sterilised jars for preservation.
sorry transalation is appalling but i hope you get the drift.