Gather first all ingredients and preheat oven (middle rack position) to 350 F / 180 C.
Line regular muffins pan with paper liners & set aside.
In another medium bowl add all-purposed flour with baking powder, baking soda, salt and zest of lemon. Stir and set this aside.
Get ready Vitamix blender & add all liquid ingredients + sugar in Vitamix blender container. Select Variable 1. Turn the machine on and slowly increase speed to Variable 5. Blend for 10 seconds.
In a medium mixing bowl, combine all dry ingredients together & add these dry ingredients inside the Vitamix blender container.
Select Variable 1 and turn the machine on. Slowly increase speed to variable 5. Blend for 30 - 40 seconds or until all well combined.
Pour the batter in paper lined muffin pan cups, filling each cup up to ¾. Spoon approx. 5 blueberries into each muffin pan cup & bake for 20 minutes.
Cool the muffins on wire rack.
Lemon glaze
In a small bowl, combine 2 & ½ cup powdered sugar & ½ cup of lemon juice. With a spoon; drizzle onto completely cooled muffins.