Whole-Wheat Brownies

Preheat oven to 350 degrees. Butter an 8-inch square baking dish; line with parchment, leaving a 2-inch overhang on all sides. In a medium bowl, whisk together flours, cocoa, baking powder, salt, and baking soda.

In a large bowl, stir together sugar, applesauce, and egg. Place butter and 6 ounces chocolate in a heatproof bowl set over (not in) a pot of simmering water; stir until melted. Stir chocolate mixture into sugar mixture. Stir in flour mixture. Pour into pan and top with 2 ounces chocolate.

Bake until a toothpick inserted in center comes out with moist crumbs attached, 40 minutes. Let cool in pan on a wire rack. Use parchment to lift cake from pan and cut into 16 squares.