Mix all ingredients except for bananas and chocolate chips, and blend well with immersion blender.
Mash bananas in a large measuring cup or bowl (I use a potato masher).
Add banana mash and chocolate chips to the chocolate batter, and stir to combine.
Divide batter evenly in a muffin tin.
Bake @400 for 15-18 minutes.
Makes about 10-12 muffins, depending on how full you fill each cup.For a lovelier presentation, add 4-5 chocolate chips on top of each muffin before baking.I have used muffin papers, which don't peel off perfectly. You can also try just greasing the muffin tin. Grease liberally with butter or coconut oil, and dust with a bit of flour or starch. Wait 10 minutes before trying to remove them.