This is just so, so simple really, just hull the berries and chop in half, crush or tiny chop the chillies and rip up the leaves. Now chuck everything into a big pot and boil, boil, boil!
Once you have reached your setting point (a spoonful on a cold plate will set up quickly) add the dash of vodka and stir well. Now pour into jars and seal. See if you can wait till it cools before you try it!