Make the peach puree: Blend peeled, pitted peaches until smooth. Add sugar or honey only if your peaches aren’t very sweet.
A splash of lemon juice adds a fresh lift.
Chill the puree: Pop it in the fridge for 20–30 minutes, or blend with a few ice cubes to cool it quickly. Cold puree keeps the bubbles lively.
Prep the glasses: Use Champagne flutes. Keep them chilled if possible for a crisper sip.
Build the cocktail: Add 2 tablespoons (about 1 ounce) of peach puree to each flute.
Top with bubbles: Slowly pour chilled Prosecco over the puree, letting the foam settle as you go.
Aim for a 1:4 ratio of puree to sparkling wine.
Gently stir: Give it a quick, gentle stir to combine without knocking out too much fizz.
Garnish and serve: Add a thin peach slice on the rim or drop one into the glass. Serve immediately.