I am using this one
Basic alcoholic ginger beer recipe. Cheap to make, fast (may be ready in less than a week), easy and delicious!
www.makewine.co.nz
Some tips.
The chilli - be very careful, it has a definite chilli bite to it from adding 1 x red chilli. Next batch I am thinking of either dropping that to 1/3 of a chilli or leaving it out.
200g of ginger is quite a lot of ginger and it comes through in the end result.
I pitched a full 10g sachet of yeast into 5L. I would go with less as it had a massive yeast smell that was off-putting.
If you find it very dry or bitter when done, add in some sugar into the glass before pouring. I discovered yesterday that it is frikken delicious as a shandy. I do 1/2 ginger beer and half lemonade and it adds that sweetness and also ups the carbonation level. Bonus of reducing the chilli kick but I am not a huge chilli fan.