Mix all dry ingredients except the sweetener. Set aside.
Beat eggs well.
Slowly stream in avocado oil.
Mix sour cream and almond milk, shaken in jar. Add to mix.
Add maple extract and vanilla extract.
Gently mix in the dry mixture.
Do a taste test to see if you have enough maple flavor. Microwave 1 teaspoon of batter for about 20 seconds.
Use ice cream scoop to scoop evenly into 12 muffin liners.
Add blueberries, pressing into batter.
Bake for 15 to 22 minutes at 350 F. or until golden brown.
Prepare maple glaze and spoon over the top.