Place 90g of White Vinegar, 30g of Light Brown Sugar and 3g of Salt in a medium-sized saucepan and place on a moderate heat
When the liquid begins to boil, stir it until the sugar has completely dissolved, then turn off the heat
Throw in 100g of Mint Leaves, then stir until they are roughly coated in liquid
Toss the whole lot, and any remaining liquid into a blender, then pulse until the mint leaves are chopped small and evenly. Be careful not to over blend, and stop short before it becomes a smooth paste
Transfer into a suitable vessel, and refrigerate for an hour to let the flavours develop before serving
Slather on whatever food-thing you desire
Use within 2 weeks