Preheat the oven to 350℉. Place liners in a standard-size muffin tin and set aside.
Mash bananas in a large mixing bowl.
Add pancake mix, milk, oil, eggs, brown sugar, and vanilla. Lightly mix together with a wooden spoon, until ingredients are incorporated, being careful not to over mix.
Spoon Nutella into the mixing bowl onto the batter in 3 dollops. Then, with a bamboo skewer or knife, swirl Nutella into the batter.
Using a scoop or tablespoon, spoon batter into the lined muffin pan, filling about ⅔ full.
Bake for 22-25 minutes or until a toothpick inserted in the center has a few moist crumbs clinging to it. Cool slightly before removing from the pans.
If you’ve tried these, come back and let us know how they were!