Add the first six ingredients together in a medium-sized mixing bowl. Mix well.
In a separate mixing bowl, add the next four ingredients. Mix well.
Add the wet ingredients to the dry ingredients.
Mix just well enough so that all ingredients are combined. There should be lumps in the batter. Do not overmix.
Gently fold blueberries into the batter.
Divide batter evenly into a lined muffin tin (12 muffins).
Bake for 18-20 minutes, until a toothpick comes out clean*
Let the muffins cool completely before eating*If you make these as lemon muffins, without blueberries, baking time will be about 14 minutesUsing plain Greek yogurt instead of plain traditional yogurt will change the consistency of the muffins (they will be more dense) but they will still taste amazing!Vanilla or lemon flavored yogurt can be used in place of plain yogurt. Making this substitution will change the nutrition profile of the muffins.