Preheat oven to 385 degrees.
In a large bowl sift flour, baking soda, nutmeg, baking powder, and salt. Set aside.
In another large bowl whisk together sugar, oil, cap-ful of vanilla, egg, and yogurt. Add the dry ingredients and stir to a count of 10.
Add blueberries, reserving 1/2 cup, to mixture and stir 3 times.
Add mixture to well-buttered muffin pans. Sprinkle remaining berries on top and press down lightly. Sprinkle turbinado sugar over top. (Brown sugar can be used instead.)
Bake 20 to 25 minutes and allow to cool completely