In a bowl, whisk together the salt, flour, and baking soda.
In a separate bowl, whisk together the mashed banana, melted butter, eggs, vanilla extract, and pure maple syrup.
Add the dry ingredients to the wet and mix until just combined with a rubber spatula.
If you want half banana muffins and half banana chocolate chip, follow the instructions below.
Grease a mini muffin tin and fill half of the tin with batter up to the top of the tin.
Stir the chocolate chips into the remaining half of the muffin batter
Fill the remaining half of the mini muffin tin with the chocolate chip banana batter
Bake the muffins at 350 degrees for 11 - 14 minutes, until a toothpick inserted comes out clean
Allow the muffins to cool for 2-3 minutes, then use a knife along the edges to remove them onto on a wire cooling rack.
Store leftover muffins in an airtight container in the refrigerator for 3-4 days.