
1 ½ tsp baking powder
¼ tsp salt
½ cup (115g) unsalted butter, softened
¾ cup (150g) granulated sugar
2 large eggs, room temperature
1 tsp pure vanilla extract
¼ cup (60ml) Prosecco or sparkling wine
½ cup (120ml) whole milk
½ cup (120g) fresh peach puree (about 2 medium peaches)
1 cup (230g) unsalted butter, softened
3 cups (360g) powdered sugar
2 tbsp Prosecco
2 tbsp peach puree
Pinch of salt