In the bowl of an electric mixer, beat oil with sugar and eggs until creamy. Add bananas and vanilla and mix until smooth.
Add dry ingredients: almond flour, potato starch, baking soda, and salt and mix. Add chocolate chips and stir by hand.
Fill muffin liners ¾ of the way up. Bake for 15-20 minutes, until light brown or the tops are springy when touched.
Notes
If you don't like them too sweet, use a little less sugar as the bananas can be very sweet. We've also tried these using half the amount of oil (1/4 cup) and they came out good as well!