Preheat oven to 350F. Grease muffin tray or use paper liners.
Smash bananas thoroughly.
Add salt, baking powder, baking soda, sugar, and chocolate chips. Mix.
Add eggs and butter. Mix.
Add flour. Mix.
Spoon batter into muffin tray.
Bake for 25 to 30 minutes.
Remove from oven and allow to cool.