Preheat oven to 400 F and prepare a 12-cup standard muffin tin with spray, butter and flour, or paper baking cups.
Measure the oil into a measuring cup, then add the maple syrup. (The syrup slips easily from the measuring cup due to the oil.)
Pour oil and syrup into a large bowl, then add yogurt, egg and vanilla. Beat vigorously with a spoon or whisk until everything is well mixed.
In a separate bowl, thoroughly combine all dry ingredients except the blueberries.
Then stir the dry ingredients and blueberries into the wet ingredients until moistened. Spoon the batter into the muffin tin, filling each cup just short of the top.
Bake 18-20 minutes until tops are browned and a toothpick comes out clean. Remove from oven and cool 10 minutes before removing to a cooling rack.