This is from the German magazine called Essen und Trinken. The magazine says this is very refreshing if added to champagne or sparkling water.
- Combine the lemons, water, and sugar. Bring to a boil.
- Reduce heat and simmer for 5 minutes.
- Remove from heat, add the basil, and seep for 30 minutes.
- Remove the basil and add to sparkling water or champagne to taste.