Preheat oven to 350℉
In a high powdered blender, add eggs, pumpkin puree, milk, chocolate hazelnut spread, oats, cocoa powder, brown sugar, vanilla extract, baking powder & baking soda.
Blend very well. If you do not have a large or strong enough blender or food processor, you can break this up into two batches or just stir together in a big bowl.
Stir in chocolate chips. Save a few for the top of the muffins.
Grease a 12-tin muffin pan.
Pour batter evenly into greased muffin tins. Sprinkle each muffin with a few more chocolate chips - definitely measure this with your heart. If you have some hazelnuts, crush those up and sprinkle those on top, too.
Bake for 22-24 minutes, or until a toothpick inserted into the center of the muffin comes out clean.