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Home › Recipe

Updated: May 23, 2025 · Published: Jun 13, 2018 by Elizabeth Marek · This post may contain affiliate links · 119 Comments

Chocolate WASC

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pinterest image for doctored chocolate box mix

Chocolate WASC is the chocolate version of our popular WASC recipe that with an addition of a few ingredients, your box cake will taste almost like scratch. The texture is light and fluffy but is still sturdy enough to carve a cake or stack into for a wedding cake. Chocolate WASC is a great option if you're not quite ready to take the plunge into baking a chocolate cake recipe from scratch.

closeup of slice of chocolate wasc cake with chocolate ganache

Chocolate Sour Cream Cake

One of the ingredients that makes this cake so dang good is the sour cream. It adds a nice tang to the flavor and an extra level of moistness. Sour cream is a popular ingredient used in a lot of chocolate cake recipes giving it a similar flavor that you might get from using buttermilk or mayonnaise.

Chocolate Cake With Coffee

I like to use coffee as my liquid instead of water because the coffee brings out the chocolate flavor. Your batter will smell like strong coffee but don't worry, it won't taste like coffee. You don't have to use coffee, you can use water or even milk if you want.

chocolate wasc with chocolate frosting and chocolate chips on top

How To Make Chocolate WASC

Chocolate WASC starts with a nice chocolate-y box mix. I usually use Duncan Hines chocolate fudge cake but devils food cake will also do nicely. Just pour the contents of the mix into a bowl and add in your extra ingredients. Just ignore the instructions on the back of the box and use the recipe below instead.

Mix all your ingredients together until combined and then mix vigorously for two minutes. I used a stand mixer with a paddle attachment but you can also just use a bowl and a spoon.

I tweaked this recipe to contain melted butter so that when you chill it the cake is a bit firmer and easier to handle.

close up of chocolate cake with slice cut out of it

Why not just make it from scratch?

I get this question a lot. A LOT. I get it. If you're going to go through all this trouble of adding so many ingredients to a box mix, why not just make it from scratch? I used to think the same thing. But over the years of teaching countless bakers of all skill levels, I have learned that a lot of people are super intimidated to bake from scratch. They have little to no knowledge of how to measure, how to mix or even what a good scratch cake should taste like.

The thing about box mix is it isn't just the same ingredients as a cake from scratch. A box contains emulsifiers that basically make the cake bake up perfectly no matter what you do to it. The problem? Those emulsifiers make the cake taste a bit fake. Like eating strawberry flavored candy. It's good but doesn't exactly taste like a real strawberry right?

So adding in these extra ingredients gives you the best of both worlds. A recipe that makes the baker do more than just opening a box but the emulsifiers still ensure that the cake bakes up successfully and the added ingredients make the cake taste more like homemade. Thus giving the baker much-needed confidence and a bit of a taste of what a homemade cake tastes like so if they choose to take a leap two baking from scratch, it's not so scary.

close up of a slice of chocolate cake with chocolate frosting and chocolate chips on top

Chocolate WASC Cake For Cupcakes

This recipe works great for cupcakes and rise up perfectly. I get about 36 cupcakes from one box.

I like using my chocolate buttercream for this recipe. The yummy flavor pairs perfectly with the chocolate cake without it being too heavy. If you're looking for other yummy chocolate cake recipes, check out my guinness beer cake which is the epitome of decadent.

Other doctored box mix recipes you might want to try!

WASC (white almond sour cream cake)
Strawberry cake mix recipe

Cake Batter and Frosting Calculator

Select an option below to calculate how much batter or frosting you need. Adjust the servings slider on the recipe card to change the amounts the recipe makes.

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Cups of Batter Needed

8 cups

Cups of Frosting Needed

5 cups

Note: measurements are estimated based off the vanilla cake recipe using standard US cake pans and sizes. Measurements used are for 2" tall cake pans only. Your results may vary. Do not overfill cake pans above manufacturer's recommended guidelines.

Recipe

closeup of slice of chocolate wasc cake with chocolate ganache

Chocolate WASC Cake (doctored chocolate cake mix)

This is the chocolate version of the WASC recipe. Starting with a box mix and adding in some extra ingredients, you can get a great tasting cake in a flash that tastes almost like scratch. Shhh I won't tell. This recipe makes two 8" round cakes that are 2" tall. 
Print Recipe Pin Recipe Rate Recipe
Prep Time: 5 minutes minutes
Cook Time: 30 minutes minutes
Total Time: 35 minutes minutes
Course: Dessert
Cuisine: American
Servings: 6 cups
Calories: 390kcal
Author: Elizabeth Marek

Ingredients

Chocolate WASC Recipe

  • 1 box Duncan Hines Chocolate Fudge Cake Mix
  • 5 oz Ap flour 1 cup
  • 2 oz cocoa powder ½ cup
  • 12 oz cold coffee 1 ½ cups
  • 2 oz vegetable oil ¼ cup
  • 4 oz melted butter ½ cup
  • 3 large eggs
  • 6 oz sour cream ¾ cup
  • 7 oz sugar 1 cup
  • 1 teaspoon salt
  • 1 tablespoon vanilla extract

Chocolate Frosting

  • 16 ounces Semi-Sweet Chocolate
  • 16 ounces heavy whipping cream
  • ½ teaspoon salt
US Customary - Metric

Instructions

Chocolate WASC Instructions

  • Preheat oven to 335℉. Prepare two 8" round cake pans. I prefer to use cake goop. 
  • Add all dry ingredients into the bowl of your stand mixer with a paddle attachment. Add in the rest of your ingredients and mix on low for 1 minute. 
  • Stop and scrape the bowl and then mix on medium for two minutes. 
  • Pour batter into your cake pans and bake for 30- 35 minutes until a toothpick comes out of the center with just a few sticky crumbs clinging to the toothpick. 
  • Let cool a few minutes in the pan before turning out onto a cooling rack. Let cool fully and frost. 

Chocolate Frosting

  • Place the heavy whipping cream into a medium-sized pot over medium-high heat. Whisk occasionally to prevent burning. Do not walk away!
  • Heat cream until steam is rising from the surface but it isn't boiling.
  • Pour hot cream over the chocolate and let sit for 5 minutes
  • Add in salt and whisk until smooth. If you have any un-melted lumps, you can use an immersion blender to get them out.
  • Pour chocolate into a shallow dish and cover with plastic wrap let cool at room temperature until a peanut butter consistency. If chocolate is too firm, you can microwave for 10 seconds and then stir with a spatula or whip with a hand mixer.
  • Frost cake as desired.

Video

Notes

Don't worry about any of the ingredients on the back of the box, just use the ingredients listed in the recipe. 
This recipe makes enough batter for three 6"x2" cakes or two 8"x2" cakes (round). 
This recipe makes 40 cupcakes with about 1.25 ounces of batter per cupcake tin. 
You can use dark beer in place of coffee or just plain water. 

Nutrition

Serving: 1g | Calories: 390kcal | Carbohydrates: 38g | Protein: 5g | Fat: 26g | Saturated Fat: 15g | Cholesterol: 67mg | Sodium: 353mg | Potassium: 250mg | Fiber: 3g | Sugar: 22g | Vitamin A: 488IU | Vitamin C: 1mg | Calcium: 68mg | Iron: 3mg
Tried this recipe?Let us know how it was!

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Reader Interactions

Comments

  1. Moriah says

    July 30, 2020 at 1:47 pm

    Should the sour cream and eggs be room temperature or cold?

    Reply
    • Elizabeth Marek says

      July 31, 2020 at 9:49 am

      Room temp is best but its not super important with box mix cakes

      Reply
  2. Annette says

    July 30, 2020 at 4:25 pm

    Liz I noticed one picture shows a Duncan Hines Chocolate Fudge cake mix and another Shows Dark Chocolate Fudge. Which do you use? Would they taste the same? I’m having trouble finding Chocolate Fudge.

    Reply
    • Elizabeth Marek says

      July 31, 2020 at 9:41 am

      I prefer the duncan hines but also have problems finding it sometimes. Both taste good but I think the duncan hines is slightly better

      Reply
  3. CindeeZee says

    August 05, 2020 at 1:06 am

    I bought my Duncan Hines chocolate fudge
    at Walmart 🙂

    Reply
  4. Jo Ann Wilga says

    August 08, 2020 at 5:18 am

    5 stars
    This cake was so so good. I made it for a birthday at work, everyone raves about it. My husband loved it too. Will definitely make again

    Reply
  5. Dee Burnett says

    August 08, 2020 at 1:07 pm

    5 stars
    I made cupcakes following the Chocolate WASC recipe with a box of Duncan Hines Red Velvet cake mix. For the 1 1/2 cups of coffee, I used 1 1/2 cups of buttermilk. I was nervous it would be too sour (since the recipe also called for 3/4 cups of sour cream), but the cupcakes were delicious! Thank you for sharing this recipe!

    Reply
  6. Michele says

    September 21, 2020 at 12:50 pm

    5 stars
    I LOVE your WASC cake so I can't wait to try this one. I have a question about the frosting - my frosting will not get to a thick enough consistency to spread. Any ideas?

    Reply
    • Sugar Geek Show says

      September 21, 2020 at 4:30 pm

      Thank you! Check out my chocolate ganache recipe and video, you'll have to leave the ganache overnight to get it to a spreadable consistency.

      Reply
  7. Terry Pinneo says

    September 25, 2020 at 1:38 pm

    How can I use this recipe to make a German Chocolate Cake?

    Reply
    • Sugar Geek Show says

      September 25, 2020 at 2:53 pm

      Check out my German chocolate cake recipe! You can use this chocolate WASC recipe instead of the German cake if you want a more chocolate-y cake https://sugargeekshow.com/recipe/german-chocolate-cake/

      Reply
  8. Nabiha Khan says

    October 13, 2020 at 3:10 pm

    Hi Liz! I noticed your White WASC cake was baked at 350 F for 2 8" round cakes but the chocolate WASC cake is baked at 335 F. I baked the chocolate cake for 35 mins and its still jiggly in the middle. Didn't have this problem with the white cake though. Do you think I should bake them at 350 F next time? I love your recipes by the way!

    Reply
    • Elizabeth Marek says

      October 16, 2020 at 10:55 am

      If the cake is still jiggly just bake for longer. Every oven is different 🙂 Or you can bake at a higher temperature if you choose. These are just the times and temperatures that work best for me.

      Reply
  9. Christine H says

    October 16, 2020 at 6:57 pm

    5 stars
    I truly am impressed 🤩 I made the WASC 2 wks ago & it was so good that I decided that would be the only thing I'd let people order 🤷‍♀️ Then I made this tonight, IT'S JUST AS GOOD 🤯 I had to bake for 45-50 mins, but was perfect when it came out. I'm so happy! Thanks for sharing all of this knowledge & deliciousness with us 💜

    Reply
  10. Joy says

    October 25, 2020 at 7:03 am

    Hi Liz, quick question. The recipe says 2-8 inch cakes but in the video you say 3-8 inch cake pans. Which is correct? I’m hoping it’s actually 3 pans 🤗

    Reply
    • Sugar Geek Show says

      October 26, 2020 at 9:15 am

      You can use either! Depends on how thick you want the layers to be. If you use 3, just bake for less time.

      Reply
  11. Kaitlin says

    October 25, 2020 at 12:38 pm

    Hi sorry I see that someone asked if you can sub buttermilk for sour cream? Is it the same amount? Thanks

    Reply
    • Elizabeth Marek says

      November 14, 2020 at 10:53 am

      Yes you can, I would use equal amounts

      Reply
  12. Lauren says

    October 27, 2020 at 9:42 am

    Hi Liz! I already use a similar chocolate WASC recipe, but I like your addition of butter and cocoa powder. Is there any reason I shouldn't use dutch process cocoa in this recipe? That's all I happen to have right now. Thank you so much!

    Reply
    • Elizabeth Marek says

      November 14, 2020 at 10:45 am

      No problem to use dutched in this recipe

      Reply
  13. Pam says

    October 27, 2020 at 7:21 pm

    5 stars
    Baked for a get together last week. The Chocolate fudge cake was wonderful!! A big hit with everyone there. Can't wait to try the White cake.

    Reply
  14. sara says

    November 06, 2020 at 6:10 pm

    Hi Liz!
    Thank you so much for all your hard work and sharing all your amazing recipes with us! I have made many of your recipes, all with great success.

    I tried this recipe, followed everything to the T, oven thermometer showed 335F, used two 8x2" Fat Daddio pans and beat on speed 4 of my kitchenAid stand mixer for exactly 2 minutes, scraping halfway between.
    They took 46min to bake but had giant...and I mean GIANT deep cracks across the top...could it be that mixing for two minutes on medium is too long and it aerated the batter too much and thus the air tried to scape mid baking ad caused the cracks?

    In your Red velvet cake, you only mix on medium speed for 1 minute.

    Shall I only mix for 1 minute on medium speed next time? Please tell me how to fix the cracks 🙁

    Thank you Liz!

    Reply
    • Elizabeth Marek says

      November 08, 2020 at 1:24 pm

      Are you using the whisk attachment or the paddle? Two minutes is how long you should be mixing.

      Reply
  15. Kathleen Connally says

    November 08, 2020 at 3:52 pm

    This was the best!! My family loved it, especially my husband ( the birthday boy) I don’t think I can bake another box cake and just follow the directions on the back. I definitely will be baking this again. Thanks! Note: I had to bake it at 325* for 5 additional minutes.

    Reply
  16. Amanda says

    November 13, 2020 at 1:19 pm

    Hi, can you use this with a devils food cake mix?

    Reply
    • Elizabeth Marek says

      November 14, 2020 at 10:16 am

      Yes you sure can

      Reply
  17. Jodi says

    November 23, 2020 at 11:08 am

    5 stars
    This is my go to cake recipe, people just absolutely love it. The coffee brings the flavor of the chocolate out and I have had people in my family who do not like chocolate cake love this one!! Thanks Liz!

    Reply
  18. Chrissy says

    December 16, 2020 at 9:11 am

    5 stars
    So moist. Not hard to put together. Did not require a hundred ingredients. It was for a wedding..everyone praised...ME..so I..THANK YOU

    Reply
  19. Michele W says

    January 21, 2021 at 7:24 pm

    5 stars
    I just made this cake today. I had to substitute the sour cream for Greek yogurt, because I didn’t have any. This cake is perfect, it is so delicious and will be my go to chocolate cake. Thank you for this recipe!

    Reply
  20. Denise M says

    February 02, 2021 at 1:02 am

    5 stars
    Love the taste and the texture. Thank you

    Reply
  21. Fofi La says

    January 26, 2025 at 10:18 pm

    5 stars
    Delicious!

    Reply
  22. Samuelkal says

    April 07, 2025 at 3:10 pm

    online pharmacy viagra without prescription

    Reply
  23. Noemi Arcila says

    April 08, 2025 at 4:57 pm

    5 stars
    Best boxed cake recipe! Thank you for sharing this recipe. I have tried different ones and this one is the best. I made this cake for my sister over the weekend and everyone loved it. I used three 8 inch pans. I also wrapped each pan with cake strips.

    Reply
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