If making just one cocktail, shake the first four ingredients over ice, then pour into a glass of your choice, just make sure it's big enough to add the prosecco! Top with prosecco and serve.
If making a batch of cocktails, scale up the recipe and stir the first four ingredients together in a large pitcher. When ready to serve, divide between glasses and top with prosecco.
The first four ingredients can be mixed up to 1 day ahead and refrigerated until ready to use.
The prosecco can be switched out for any dry, sparkling white wine.