Preheat your oven to 350 degrees. Line muffin tins with cup cake liners or spray with non stick spray or use silicone baking pans.
Into a big bowl, place all of the dry ingredients. Stir gently to incorporate. I like to use a wire whisk for this.
Into a medium bowl, place all wet ingredients. Stir well. You can use an immersion blender or whisk to blend wet ingredients if you have large banana pieces in your wet ingredients this will break them up.
Pour wet ingredients into dry ingredients and stir together - but do not over mix. Muffin batter doesn't need a lot of stirring. Add the chocolate chips.
Line muffin tins with parchement cup cake liners or use a silicone muffin pan for oil baking. Spoon batter into prepared 12 muffin cups about 2/3 full.
Bake in preheated 350 degree oven for 20-24 minutes. Cool in the silicone pans for 10- 15 minutes to make it easier to remove them from the pan. Store in the refrigerator or freezer.