1 tablespoon grated lemon zest
1/2 cup freshly squeezed lemon juice
1/2 cup granulated sugar
3 tablespoons unsalted butter
3 eggs, whisked
2 cups mixed berries, such as raspberries, blackberries and blueberries
1/2 cup confectioners' sugar
1/4 cup moscato sparkling wine
1 1/2 cups heavy cream