Basil smoothy

1 1/4 cups plain yogurt
1 cup fresh basil leaves
1 1/2 cups sugar syrup
1 cup ice

Put everything in blender and blend until smooth.

Sugar syrup:
1 cup water
1 cup sugar
1 1/2 teaspoons lemon zest

Combine all ingredients in a small saucepan, over medium heat. Bring to a boil, reduce the heat and simmer for 5 minutes, stirring occasionally, until the sugar has dissolved. Allow the syrup to cool, about 20 minutes. Strain before using.