Chill everything well. Pop the sparkling rosé and soda water in the fridge for at least two hours. Cold ingredients help keep the bubbles lively and reduce the need for lots of ice.
Prep your berries. Rinse and pat dry. Slice the strawberries thinly so they release flavor quickly.
Keep raspberries and blueberries whole to avoid mush.
Start with ice and fruit. Fill each glass halfway with ice. Add a small handful of berries—about 4–6 pieces total—so the flavors infuse without crowding the glass.
Add elderflower. Pour in 1 ounce of elderflower liqueur per glass. If using cordial, start with 3/4 ounce and adjust to taste, since cordials can be sweeter.
Squeeze a touch of lemon. A small squeeze (or a thin slice) brightens the drink and reins in sweetness.
Don’t overdo it—just a few drops.
Top with sparkling rosé. Pour 3–4 ounces slowly down the side of the glass to keep the fizz. Aim for a gentle cascade rather than a splash.
Add soda water. Finish with 1–2 ounces of soda water for lift and balance. This makes it feel like a true spritz: light, effervescent, and refreshing.
Give a gentle stir. Use a bar spoon to mix from the bottom with one or two turns.
You want the flavors combined, but the bubbles intact.
Garnish. Add a mint sprig and a thin lemon wheel if you like. A few extra berries on top make it photo-ready.
Taste and adjust. If it’s too sweet, add more soda water or a small splash of lemon. If it needs more fragrance, add a tiny bit more elderflower liqueur.