You need
1 litre lime juice
Approximately 12cm ginger root
250ml sugar (you can double this if you prefer a sweeter drink)
10ml tartaric acid
To prepare
Wash the ginger root (no need to peel it) and slice into 5mm thick slices
Place all the ingredients in a saucepan
Stir to dissolve the sugar
Bring to the boil
Turn the heat off and leave the mixture, covered, to infuse at room temperature for at least 12 hours, preferably close to 24 hours
Strain and bottle
I find that this keeps well at room temperature
Serve by diluting 1 part cordial with 5 parts still or sparkling water and with plenty of ice.
For a warm drink, add water that has just boiled. Sweeten with honey if desired.
For a quick Margarita pour 50ml cordial into a cocktail shaker, a blender or smoothie maker (blender or smoothie maker will give a granite-like texture
Add 250ml ice cubes
20-30ml good quality Tequila
Shake or blend, pour into a cocktail glass where you have whipped the edge of the glass with lime and dipped it in salt (optional)
Serve with a lime wedge
