250 ml Water
250 g Granulated white sugar
50 g Ginger, skin removed and diced
6 Fresh kaffir lime leaves, torn
2 Fresh lemongrass stalks, sliced
1 Red chilli, diced
Zest of 3 large limes
Heat water in a small saucepan over medium to high heat until it begins to simmer.
Add the sugar and stir until fully dissolved.
Add all ingredients and stir for 3 minutes. Remove from heat.
Let the syrup stand until it reaches room temperature.
Transfer into a sterilised jar through a fine sieve and keep refrigerated for up to 3 weeks.