Christmas Cupcakes

Bahan-bahan (16 porsi)

• 1 3/4 cups cake flour (not self-rising flour)
• 1 cup granulated sugar
• 1 1/2 teaspoons baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1/4 cup salted butter, room temperature
• 2 large eggs, room temperature
• 1/3 cup full-fat sour cream
• 1/4 cup vegetable oil (or canola oil)
• 1 tablespoon vanilla extract
• 2/3 cup whole milk, room temperature
• optional: sprinkles (see note below)
• 1 cup salted butter, room temperature
• 4 cups powdered sugar
• 1/4 cup heavy cream
• 1 tablespoon vanilla extract