Preheat oven to 350.

In a large bowl sift flour, baking soda, nutmeg, baking powder, and salt. Set aside.

In another large bowl, whisk together sugar, oil, vanilla, egg and yogurt. Add dry ingredients and stir to a count of 10.

Add blueberries, reserving half a cup, and stir.

Add the mixture to the well buttered muffin pans. Sprinkle remaining berries on top and press down lightly. Sprinkle with course sugar.

Bake for 20-25 minutes.