Baked Cinnamon Sugar Donuts

Preheat the oven to 350 degrees F (175 degrees C). Spray 9 cavities of a 12-cavity doughnut pan with cooking spray.

Combine sugar butter nutmeg and salt in a medium bowl; beat with an electric mixer until well combined. Add egg and mix until incorporated.

Combine flour and baking powder in a small bowl. Add flour mixture to butter mixture in batches alternating with milk beating batter briefly after each addition. Pour batter into a large resealable plastic bag. Snip off one corner of the bag and pipe batter into the 9 prepared cavities of the doughnut pan filling each halfway.

Bake doughnuts in the preheated oven until a knife inserted into the center comes out clean 7 to 9 minutes.

While the doughnuts are baking place melted butter for topping in a shallow bowl. Mix together 2/3 cup sugar and cinnamon in another shallow bowl. Roll warm doughnuts in melted butter and then in cinnamon sugar to coat.