Handy ice cubes to add to a glass of water for a summer picnic.
You will need:
1/2 lime per ice cube shape
mint, washed and finely hacked
quality sea salt
Squeeze the lime juice, add 2-3 pinches of salt and mint.
Pour into the ice cube tray and freeze.
You can use this hack with any leftover fresh herb: basil, sage, rosemary, thyme... Mix with olive oil and salt and freeze. You avoid waste and have fresh herbs handy at all times.