Fluffy Baked Vanilla Donuts with Sweet Glaze

Ingredients

• 1 cup all-purpose flour
• 1/3 cup granulated sugar
• 1 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/4 teaspoon salt
• 1/2 cup whole milk
• 1/4 cup sour cream
• 1 large egg
• 2 tablespoons unsalted butter, melted
• 1 teaspoon vanilla extract
• For the Glaze:
• 1 cup powdered sugar
• 2 tablespoons milk
• 1/2 teaspoon vanilla extract