Position your oven rack to the middle and pre-heat to 350 F. Prepare a 12-cup muffin pan with liners and set aside.
Place all ingredients except chocolate chips into your blender.
Blend on high until completely smooth, pulsing or scraping down the sides as needed. This may take up to 60-seconds.
Transfer batter into prepared muffin pan, filling each about 1/2 way. Top with each muffin with a sprinkle of chocolate chips if desired.
Bake for 16-20 minutes or until brownies are set and lightly cracked on top. Be careful not to over-bake or your muffins will dry out.
Let your muffins rest in the pan for 5-minutes before transferring to a wire rack to cool.
Serving: 1muffin, Calories: 166kcal, Carbohydrates: 22g, Protein: 5g, Fat: 7g, Saturated Fat: 2g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 4g, Trans Fat: 0.01g, Cholesterol: 28mg, Sodium: 79mg, Potassium: 215mg, Fiber: 4g, Sugar: 10g, Vitamin A: 43IU, Calcium: 43mg, Iron: 1mg