For a sweeter spritz, add a little more sugar or substitute simple syrup.

For stronger citrus flavor, add fresh lemon juice or additional preserved lemon.

For a less salty drink, reduce the olive brine and add a splash of fresh lemon juice.

Use more tonic water for a stronger bittersweet flavor or more soda water for a lighter drink.

Fresh basil, rosemary, or mint can be muddled with the lemon for an herbal variation.

For a tonic-free version, replace the tonic water with additional soda water and adjust with lemon juice or sugar to taste.

The spritz is best served immediately. To prepare ahead, muddle and strain the lemon, olive brine, and sugar base and refrigerate it in an airtight container. Add ice and carbonated water just before serving.

Nocellara olives provide a mild, buttery garnish, but another good-quality green olive can be substituted.