This is a great recipe if you like your brownies on the "cakey" side. They are moist and full of chocolate flavor (because it's loaded with cocoa) but low in calories and saturated fat because canola oil (and less of it) is added in place of butter. A sugar-substitute is used in place of more than half of the sugar, and the sugar-free peppermint patties hidden in the middle of each brownie make them irresistible!
Preheat oven to 350°F. Coat a 9-inch square baking pan with canola cooking spray.
Add canola oil, fat-free sour cream, corn syrup, sugar, sugar-substitute, and vanilla to large mixing bowl and beat well by hand or with mixer on low speed.
Add in the egg, egg substitute, and cocoa, beating well after each addition and until lumps are gone.
Add the flours, baking powder, and salt to a 2-cup measure and blend briefly with a fork. Add dry ingredients to batter in mixing bowl and mix by hand or with mixer just until blended.
Pour half of the batter into prepared pan. Lay peppermint patties on top of batter. Pour the remaining batter over the patties. Bake in center of oven for 22 to 25 minutes or until brownies begin to pull away from the sides of the pan. Cool completely in pan on wire rack. Cut into bars.
Sprinkle top with a little bit of powdered sugar if desired.