Pour 1/2 ounce of your prepared cherry simple syrup over the ice.

Add 1 ounce of Aperol to the glass.

Pour in 3 ounces of chilled Prosecco.

Top the glass with 1 ounce of Fever-Tree sparkling grapefruit mixer.

Stir gently with a long bar spoon from the bottom of the glass to combine the layers without losing carbonation.

Garnish with a fresh cherry and a slice of grapefruit, then serve immediately.

Add the sugar, water, and pitted cherries to a small saucepan over medium heat.

Bring the mixture to a boil, stirring occasionally until the sugar dissolves completely.

Reduce the heat to low and let it simmer for 10 minutes, using a spoon to mash the cherries gently.

Remove the pan from the heat and let the syrup cool completely to room temperature.

Pour the syrup through a fine-mesh strainer into a clean jar to remove the fruit pulp, then store it in the fridge.