For 100ml of ready syrup
- 100ml lime juice or 5 limes – 40p from the market
- 3 limes zest
- 100 ml water
- 200g unrefined brown sugar granules – From the cupboard
Total spend: £0.40p
Grate the zest off 3 of the 5 limes before juicing all 5 of them. The juice form 5 limes should produce about 100ml of lime juice.
To squeeze out the maximum juice from a like or any citrus, roll it on a hard surface while pressing it down with the palm of your hand… Be careful not to press too hard or it will burst.
Mix the sugar with water in a small sauce pan and place on medium heat for 4-5 minutes. Brown sugar tends to foam a lot, so keep an eye on it and stir it constantly until the white foaming starts to diminish.
Now, add the lime and a pinch of salt. Leave to simmer for another 2-3 minutes, then remove for the stove and mix in the zest. Mix well and leave to cool down for at least 10 minutes before serving.
Adding the zest at the last minute will guarantee a very strong lime flavour as the zest will be warmed but not cooked by the hot syrup.