Preheat oven to 350 degrees F.

In a large mixing bowl add the sugar free brownie mix and Diet Coke. Stir together with a spoon according to the directions on the box.

Spray an 8×8 baking pan with no-stick cooking spray.

Add the brownie batter to the ban.

Bake 28-30 minutes or until cooked all the way through. I let mine cook an additional 5 minutes.

Let brownies cool all the way, then add the frosting.

Place candy canes in a small zip up baggie and smash them with a meat mallet or rolling pin. Sprinkle over the brownies.