Contest-Winning Eggnog Cake

Ingredients

• 1/2 cup butter, softened
• 1-1/4 cups sugar
• 3 large eggs, room temperature
• 1/2 teaspoon vanilla extract
• 1/2 teaspoon rum extract
• 2 cups all-purpose flour
• 2 teaspoons baking powder
• 1 teaspoon salt
• 1 cup eggnog
• FROSTING:
• 1/4 cup all-purpose flour
• 1/4 teaspoon salt
• 1-1/2 cups eggnog
• 1 cup butter, softened
• 1-1/2 cups confectioners' sugar
• 1-1/2 teaspoons vanilla extract
• Pearlized nonpareils, optional