Whole-Wheat Blueberry Bars - Healthy Living

Ingredients

• 1 1/3 cups plus about 3 tablespoons whole-wheat pastry flour
• 1/2 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 cup packed light brown sugar
• 2 tablespoons butter , softened
• 2 tablespoons canola oil
• 1 large egg
• 1 teaspoon vanilla extract
• 1/2 cup granulated sugar
• 2 tablespoons all-purpose flour
• 1 teaspoon freshly grated lemon zest
• 2 cups fresh or frozen blueberries
• 1 tablespoon lemon juice
• Confectioners’ sugar for dusting (optional)