Crafting your Banana Nutella Muffins is simple with these easy-to-follow steps:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C) and greasing a muffin tin or lining it with paper liners.
2. Mash the Bananas: In a large bowl, mash the ripe bananas until smooth. A fork works great for this task.
3. Mix in Butter: Stir in the melted butter into the mashed bananas, mixing well.
4. Add Sugar, Egg, and Vanilla: Add the granulated sugar, beaten egg, and vanilla extract. Stir until well combined.
5. Combine Dry Ingredients: In a separate bowl, mix baking soda, salt, and flour. Gradually add it to the banana mixture, gently folding until just combined. Avoid overmixing; some lumps are okay.
6. Incorporate Nutella: Gently fold in the Nutella. If you like, you can reserve some Nutella to swirl on top before baking for an extra touch.
7. Fill Muffin Tins: Spoon the batter into the prepared muffin tin, filling each cup about 2/3 full. You can add chocolate chips or nuts at this stage if desired.
8. Bake: Place in the oven and bake for 20-25 minutes, or until a toothpick inserted into the center comes out clean.
9. Cool: Once ready, let the muffins cool in the pan for about 5 minutes before transferring them to a wire rack to cool completely.

These straightforward instructions will help you enjoy fresh, warm Banana Nutella Muffins in no time!