Preheat oven to 400 degrees.
Grease the cups of a muffin pan, or line with paper liners.
Mix the flour, baking powder, baking soda, sugar, and 3/4 cup chocolate chips into a large bowl.
Whisk together the Nutella, milk, vegetable oil, and egg substitute.
Pour the milk mixture into the dry ingredients and mix together.
Fill the muffin cups 2/3 of the way full. Sprinkle a few chocolate chips on top of each muffin.
Bake for 20 minutes or until a toothpick inserted in the middle comes out clean.
Remove from oven to wire rack to cool.