Tender vanilla sponge with pink ombre buttercream and floral decoration

Ingredients

• 2½ cups all-purpose flour
• 2½ teaspoons baking powder
• ½ teaspoon salt
• 1 cup unsalted butter, room temperature
• 2 cups granulated sugar
• 4 large eggs, room temperature
• 1 tablespoon pure vanilla extract
• 1 cup whole milk, room temperature
• 1½ cups unsalted butter, room temperature
• 5 cups powdered sugar, sifted
• 2-3 tablespoons milk or heavy cream
• 2 teaspoons pure vanilla extract
• Pink gel food coloring
• Edible flowers such as violets, pansies, or rose petals
• Non-edible flower toppers (optional, remove before serving)