- 1/3 cup whole flaxseeds (see Ingredient note)
- 1 cup whole wheat flour
- 14 tablespoons all-purpose flour
- 1 1/2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 1 teaspoon ground cinnamon
- 2 large eggs
- 1/2 cup pure maple syrup
- 1 cup buttermilk (see Tip)
- 1/4 cup canola oil
- 2 teaspoons freshly grated orange zest
- 1 tablespoon orange juice
- 1 teaspoon vanilla extract
- 1 1/2 cups fresh blueberries
- 1 tablespoon granulated sugar
- Preheat oven to 400 degrees F. Coat 12 muffin cups with cooking spray.
- Grind flaxseeds in a spice mill (such as a clean coffee grinder) or dry blender. Transfer to a large bowl. Add whole-wheat flour, all-purpose flour, baking powder, baking soda, salt and cinnamon; whisk to blend.
- Whisk eggs and maple syrup in a medium bowl until smooth. Add buttermilk, oil, orange zest, orange juice and vanilla; whisk until blended. Add to the flour mixture and mix with a rubber spatula just until dry ingredients are moistened. Fold in blueberries. Scoop the batter into the prepared muffin cups. Sprinkle tops with granulated sugar.
- Bake the muffins until the tops are golden brown and spring back when touched lightly, 15 to 25 minutes. Let cool in the pan for 5 minutes. Loosen edges and turn muffins out onto a wire rack to cool slightly.