Turn into a cocktail by adding 4 Tbsp. white rum. *Click here for the Allspice-Bay Simple Syrup recipe.
Place syrup, basil and a quarter of the sliced strawberries in a small pitcher and muddle together using a wooden spoon. Add the rest of the strawberries and soda or seltzer.
Serve over ice with slices of lemon. This recipe also works with our Vanilla Bean-Grenadine Simple Syrup or Coconut Kaffir Simple Syrup.