Better-Than-The-Book Ebelskivers — Three Many Cooks

Ingredients

• 1 cup all-purpose flour
• 2 teaspoons sugar
• ½ teaspoon salt
• ½ teaspoon baking powder
• ¼ teaspoon baking soda
• ¾ cup buttermilk
• ¼ cup milk, plus a tablespoon or so extra if necessary
• 1 large egg, separated
• 2 tablespoons unsalted butter, melted
• Vegetable oil for brushing pan
• ½ cup filling (e.g. jam, peanut butter, nutella, cubed cheese)