Combine all dry ingredients; flour, sugar, baking powder nutmeg and grated orange rind in a bowl. Set aside
Whisk egg for about a minute, then gradually add milk and vanilla until fully combined
Pour liquid mixture with dry ingredients, a little at a time. Mix until thoroughly combined
Finally add melted butter and fold in. Mix is going to be a little runny but that’s ok.
Heat aebleskiver or fry pan on medium heat, add about a ½ or more teaspoon of oil, and brush the holes with the oil.
Make sure pan is warm enough before adding batter about ½ full. Then quickly add about ¾ of Nutella over the batter in each hole
Add more pancake mixture over the Nutella and cover each hole.
Cook for about 1 or 2 until bottom is golden brown - on each side, you should see the batter bubbly,then push to the side of the pan, gently and quickly flip using chopstick or fork. You may use 2 chopsticks. Continue cooking on the other side untiil golden brown
Repeat this process until all the batter is finished.
Let it cool slightly, dust with confectioner’s sugar and serve