Preheat oven to 425F. Add coconut sugar and coconut oil to a stand mixer bowl or large bowl. Mix until well incorporated.
Add in the eggs, one at a time until fully incorporated. Add in yogurt and vanilla extract to wet ingredients and mix well.
Add in mashed banana or other fruit puree and mix well.
In a separate bowl, mix or sift together the flour, baking soda and salt. Add the dry ingredients to the bowl of wet ingredients in three parts, mixing slowly each time.
Fold in mix-ins of choice.
Line a muffin tin with silicone muffin liners and spray them with coconut oil spray. Scoop the batter into the liners with a cookie scoop and place in the oven.
Bake muffins at 425F for 5 minutes. Reduce heat to 350F and bake for an additional 15-20 minutes or until a toothpick comes out clean.
Notes
Nutrition information assumes no mix-ins and banana puree as the fruit base.