Peel the lemons, slice them and press the juice. Add the lemon juice and peels to a small pot.
Add in also the sugar and 3 cups of water.
Bring to boil, so the sugar melts.
To a big pot or bucket, add the rest of the water and the sugar-lemon water from the small kettle.
When the water in the bucket feels lukewarm, you can add a small piece of yeast. Cover the bucket with cloth or paper, and let rest overnight.
The next day pour your mead into glass bottles, use a sieve to strain out the lemon. Add 3-5 raisins to each bottle and transfer them to the fridge.
When the raisins rise to the surface, your mead is ready.