The tartness of a pickled cucumber is tough to beat, whether you’re tucking into a plate of cheese and crackers, or stuffing the frog-green slices in with a burger.

But have you given much thought to what can be done with the vinegary liquid left over in the jar? Generally, once you’re out of crunchy, sweet-sour veg, it ends up being tipped down the drain – but next time, stop yourself, there’s a lot of potential in that pickle juice.