For the Chocolate Sponge Cake

• 4 large eggs, at room temperature
• ¾ cup granulated sugar
• ¼ cup unsweetened cocoa powder
• ½ cup all-purpose flour
• 1 teaspoon baking powder
• ¼ teaspoon salt
• 1 teaspoon vanilla extract

For the Filling

• 1 cup heavy whipping cream, very cold
• 2 tablespoons powdered sugar
• 1 teaspoon vanilla extract
• 1 cup cherry filling or cherry compote (well drained)

For Finishing and Decoration (Optional)

• Powdered sugar, for dusting
• Chocolate shavings or curls
• Fresh cherries or maraschino cherries
• A light drizzle of cherry syrup or kirsch (optional, alcohol-free if preferred)