To make the simple syrup, heat 1 cup of sugar and 1 cup of water in a small sauce pot until the sugar dissolves.  You can keep in the fridge for a week or in the freezer for up to 6 months.

 

Place 4-5 leaves of basil in a martini shaker with the lemon juice, vodka, simple syrup and limoncello.  Muddle together.  Add ice and shake.  Using a strainer, pour the mixture through the strainer and into a martini glass or coup.  Garnish with a fresh basil leaf.