Before adding all the ingredients to the pan we broke the cinnamon sticks in half to release more flavour.
Give a good stir and place on a low heat so the mixture now simmers. Every 10 minutes stir to make sure the sugar is dissolving. Simmer for 30 minutes.
We used a sieve to strain the hot syrup straight into our jug. This will last for a couple of days if refrigerated. To make it last up to 3 weeks add a shot of vodka and store in an airtight bottle.