Preheat the oven to 350 degrees.
Mash the bananas into a purée.
Melt the butter and add to the purée. Add baking soda and salt then sugar, eggs and vanilla. Finally add the flour a 1/2 cup at a time.
The batter will be THICK! Add the chocolate chips and pecans last and just fold in.
Put muffin liners in your muffin pan AND spray them with cooking spray!
Use a 1/2 cup measuring cup and scoop the batter into the liners.
I fill each liner about 3/4 full.
Bake for about 15- 20 minutes. You can see here that this recipe made 24 muffins plus a small loaf of bread.
Take out and check when the tops are golden brown.
Insert a toothpick into the center of a muffin. Try to avoid the chocolate!
You know that the muffins are done if you don't have batter on the toothpick!
Let cool and enjoy!