2 cups well chilled seltzer or sparkling mineral water
1 cup well chilled peach brandy
1 cup superfine sugar
2 (750-ml) bottles well chilled Cava (Spanish sparkling wine)
About 4 cups assorted berries, such as blueberries, blackberries, and raspberries, rinsed and drained, for serving
Stir the seltzer, brandy, and sugar together in a punch bowl. When the sugar is dissolved, uncork the sparkling wine and pour it gently into the bowl. Float about half the berries in the sangria and use the rest to decorate individual glasses.