Place the lemons in a colander, pour boiling water over them to remove wax. Then transfer to a bowl of cold or room temperature water and rinse while scrubbing the outer skin. Using a clean kitchen towel, dry the lemons.

Cut the lemons into quarters, lengthwise. Remove the seeds. Now slice the lemon (with skin) as thin as possible. Set aside.

Peel the ginger by using the edge of a spoon to scrape away the skin. Rinse and pat dry. Cut into very small cubes or use a coarse grater (grater with a bit bigger holes) to grate the ginger.

Place a half of the lemon and ginger in the jar and pour half of the honey over them and stir to mix. Add the remaining lemon, ginger and honey and mix again.

Seal the jar and let it sit in the fridge at least overnight for the flavors to infuse.

Before using, give the jar a good shake or stir, as the honey may sit at the bottom of the jar. Add a spoonful of the mixture to a cup and add boiling water.