Sunshine Sponge Cake

Ingredients (16)

• 9 eggs, separated
• 1/4 cup water
• 1 tablespoon minced fresh lemon verbena leaves
• 1 teaspoon vanilla extract
• 1-1/2 cups sugar, divided
• 1-1/4 cups all-purpose flour
• 1/2 teaspoon baking powder
• 1 teaspoon cream of tartar
• 1/2 teaspoon salt
• LEMON BUTTER FROSTING:
• 4-1/2 cups confectioners' sugar
• 1/3 cup butter, softened
• 1/4 cup lemon juice
• 1 teaspoon vanilla extract
• 1/4 teaspoon lemon extract
• Daisies and additional lemon verbena leaves, optional