Preheat your oven to 400 degrees and lightly grease a muffin tin. I used canola oil cooking spray.
Place all of the ingredients in the blender (except the add ins) and blend on high speed. Stop the blender about every min or so to scrape down the sides and make sure everything is blended together and well incorporated. Once all the oats are completely broken down, fold the add ins into the mixture and your batter is ready to go!
Pour the batter evenly into the muffin tin, only fill about 2/3 because the muffins will rise in the oven. I sprinkled some more chocolate chips on top because... well, because it's chocolate. But that's optional :) Bake for about 15-18 minutes until the top is set and chips are melted. Stick a toothpick in to make sure the center is cooked.
Let the muffins cool in the pan for about 10 minutes and then enjoy!