Step 1: Preheat your oven to 350°F (175°C).
Step 2: Line your cupcake pan with cupcake liners.
Step 3: In a large mixing bowl, combine the batter with eggs, milk, melted butter, and vanilla extract. Use an electric mixer to beat until smooth.
Step 4: Incorporate the baking powder into the batter and mix until just combined.
Step 5: Spoon the batter into the lined cupcake pan, filling each liner about two-thirds full.
Step 6: Bake for 18-20 minutes, or until a toothpick comes out clean.
Step 7: Cool the cupcakes in the pan for 5 minutes, then transfer to a cooling rack.
Step 8: Once cool, remove a small section from the top of each cupcake and fill with strawberry preserve.
Step 9: Top each cupcake with Suspiro frosting.