Preparation:

1. Fill an old fashion glass with ice
2. Add lime juice and zaatar syrup
3. Top with tonic and stir
4. Garnish with four Lebanese cucumber slices in a fan shape
5. Sprinkle with a thin line of zaatar

For the Zaatar Syrup (1.5 liter):

1. Mix 1 L of water, 1 kg of sugar and 1 cup of zaatar.
2. Let infuse for 24 hours.
3. Then filter finely.

Cheers!