Instructions:
Prepare Nutella Centers:
Line a donut pan with plastic wrap.
Transfer Nutella to a piping bag and pipe Nutella into the center of each cavity to form a ring. Freeze until firm.
Remove Nutella rings from the pan, place on a plate, and return to the freezer until ready to use.
Preheat and Prep:
Preheat the oven to 350°F (175°C) and brush the donut pan with melted butter.
Make the Donut Batter:
In a small bowl, mix flour, baking powder, and salt.
In another bowl, combine the remaining melted butter, sugar, cinnamon, vanilla, egg, and milk. Whisk until well combined.
Whisk in the flour mixture until smooth.
Transfer the batter to a piping bag.
Assemble the Donuts:
Fill each donut cavity with half of the batter.
Place the frozen Nutella rings on top of the batter in each cavity.
Cover the Nutella with the remaining batter.
Bake the Donuts:
Bake for 13-15 minutes until golden brown and firm to the touch.
Finish the Donuts:
Let the donuts cool in the pan for 5 minutes, then transfer them to a rack.
In a bowl, combine cinnamon and sugar.
Melt the 2 tablespoons of butter.
Brush each donut with melted butter and dip in the cinnamon sugar mixture.
Serve and Enjoy:
Enjoy the delicious Nutella-filled donuts warm or at room temperature.
Note:
These donuts are best enjoyed fresh. Store any leftovers in an airtight container at room temperature for up to 2 days.
