Preheat oven to 375°F.

In a large bowl, mix the butter, eggs, and milk.

Incorporate the flour, baking powder and vanilla extract.

Whisking until well combined.

Fill a muffin pan with paper-filling cups and pour the batter into them.

Top with Nutella and gently mix it in.

Bake for 20 minutes, or until a toothpick comes clean when inserted into the muffin.

Remove from the oven and let them cool down.

Serve and enjoy.

Tips

Add some chopped hazelnuts for a crunchy kick.