Diet Coke and Cake Mix Recipe
A super simple, surprisingly moist and fudgy chocolate cake made with just a box of cake mix, a can of Diet Coke, and a dollop of Cool Whip on top. A longtime favorite for anyone watching sugar or time.
- Prep Time: 5 minutes
- Cook Time: About 23 minutes
- Total Time: 28 minutes
- Yield: 16 servings 1x
- Category: Dessert
- Method: Baked
- Cuisine: American
Ingredients
Scale
1 box (18 oz) chocolate cake mix (preferably fudge with pudding)
1 can (12 oz) Diet Coke
1 tub (8 oz) Cool Whip Free or Cool Whip Lite
Instructions
- Preheat oven to the temperature listed on the cake mix box.
- Grease a 9x13 baking pan.
- In a large bowl, combine the cake mix and Diet Coke.
- Beat as directed on the box (usually 2 minutes on medium).
- Pour the batter into the greased pan.
- Bake 5 minutes less than the time listed for a 9x13 cake (e.g., if the box says 28 minutes, bake for 23).
- Check for doneness using a toothpick—should come out clean.
- Cool the cake in the pan on a wire rack.
- Once cool, spread Cool Whip evenly over the top.
- Slice, serve, and refrigerate any leftovers (if you have any!).
Notes
- If you’ve got a sweet tooth but don’t wanna go full sugar overload, this cake’s a great compromise.
- You can switch up the flavor too—vanilla cake mix with Diet Orange, lemon mix with Sprite Zero… have some fun with it.
- I like to add a sprinkle of mini chocolate chips on top if I’m feelin’ fancy.
- And if you’re bringing it to a potluck? Make two pans. One disappears real fast.
Nutrition
- Serving Size: 1 slice
- Calories: 160Kcal
- Sugar: 10g
- Sodium: 270mg
- Fat: 4g
- Saturated Fat: 2g
- Unsaturated Fat: 1g
- Carbohydrates: 30g
- Fiber: 1g
- Protein: 1g