100% Whole Wheat Blueberry Muffins

INGREDIENTS

1 cup

Blueberries

1 tsp

Baking powder

1/2 tsp

Baking soda

1 cup

Brown sugar

1/2 tsp

Cinnamon, ground

Cinnamon-sugar or coarse white sparkling sugar

2 1/2 cups

King arthur whole wheat flour or premium whole wheat flour, White

3/4 tsp

Salt

1 tsp

Vanilla extract

1/3 cup

Vegetable oil

1 1/2 cups

Buttermilk or yogurt (regular or greek-style)