Triple Chocolate Cookies

Ingredients

• 1/4 cup butter, softened
• 1/2 cup dark brown sugar
• 1/4 cup granulated sugar
• 1/4 cup canola oil
• 1 egg
• 1 teaspoon vanilla extract
• 1/2 cup all-purpose flour
• 1/2 cup whole-wheat pastry flour
• 1/4 cup unsweetened cocoa powder (not Dutch processed)
• /4 teaspoon salt, optional
• 1/3 cup coarsely chopped dark chocolate (2 ounces)
• 1/3 cup coarsely chopped milk chocolate (2 ounces)
• 2/3 cup chopped pecans, optional