Granola Blueberry Muffins

Ingredients (13)

• 1-1/2 cups whole wheat flour
• 1/2 cup all-purpose flour
• 1/4 cup packed brown sugar
• 2 teaspoons baking powder
• 1/2 teaspoon salt
• 1/2 teaspoon baking soda
• 1 cup granola without raisins, divided
• 1 large egg, room temperature
• 1 cup buttermilk
• 1/4 cup canola oil
• 2 tablespoons orange juice
• 1 tablespoon lemon juice
• 1 cup fresh or frozen unsweetened blueberries