Lemon Zucchini Bars

INGREDIENTS

• 1 1/4 cups white sugar
• 1 cup vegetable oil
• 3 eggs
• 2 teaspoons lemon zest
• 1/4 cup fresh lemon juice
• 1 3/4 cups grated zucchini
• 2 cups all-purpose flour
• 1/4 teaspoon baking powder
• 2 teaspoons baking soda
• 1 teaspoon salt
• 1 cup chopped walnuts
• 1/3 cup confectioners' sugar for decoration