Preheat the oven to 350 degrees F.

In the bowl of a stand mixer with paddle attachment, combine dry ingredients with wet ingredients. Combine cake mix with eggs and oil.

Add apple juice and mix until a cake like batter forms.

Scoop the donut batter into a large freezer bag or piping bag.

Spray doughnut pans with non-stick spray.

Pipe the batter into each cavity of the donut pan.

Bake for 12 minutes or until just golden brown.

Move to a cooling rack.

Pour melted butter on a saucer.

Mix cinnamon and sugar on another saucer.

Dip the top of each donut in melted butter and then coat it in the cinnamon sugar.