Powdered Donut Cake - Once Upon a Chef

Ingredients

• ¾ cup granulated sugar
• 2 large eggs
• 1 cup sour cream
• ½ cup (1 stick) unsalted butter, melted and slightly cooled
• 1¼ teaspoons ground nutmeg
• 1 teaspoon vanilla extract
• ¾ teaspoon kosher salt
• 1½ cups all-purpose flour, (spooned into measuring cup and leveled-off)
• 1½ teaspoons baking powder
• ¼ teaspoon baking soda
• 1 tablespoon unsalted butter, (melted)
• 3 tablespoons confectioners' sugar