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Home › Recipes › Recipe

Updated on March 10, 2026 by Liz Marek · This post may contain affiliate links · 127 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

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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: Liz 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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About Liz Marek

Liz Marek is a professional cake artist, sweet and savory recipe developer, and the founder of Sugar Geek Show, where she teaches cooking, baking and cake decorating through detailed tutorials, food science explanations, and kitchen-tested recipes. She has been creating recipes and teaching baking techniques since 2008, helping bakers of all skill levels gain the confidence to make professional-quality desserts at home.

Liz is known for breaking down complex cooking and baking concepts into simple, approachable methods. Her work focuses on helping people understand not just how a recipe works, but why it works. Through Sugar Geek Show, she shares step-by-step recipes, cake decorating tutorials, and practical baking guides designed to make professional techniques accessible to everyone.

Over the years, Liz has taught thousands of students through online tutorials, classes, and educational content focused on real kitchen results. Her recipes are carefully tested and written to help people succeed the first time they make them.

When she’s not developing recipes or teaching baking techniques, Liz also hosts curated travel experiences for women through her travel brand Soul Sisters.

You can find Liz’s latest recipes, baking tutorials, and food science tips at Sugar Geek Show.

Reader Interactions

Comments

  1. Natalie says

    May 25, 2026 at 11:12 am

    5 stars
    This is my go to cake and cupcake recipe now. It sets up perfectly is very moist and delicious. I make the white chocolate and a lemon version.

    Reply
  2. Theresa says

    May 15, 2026 at 3:21 pm

    5 stars
    What a fabulous recipe! I have used it for candle cakes for Halloween, and now for graduation cupcakes. So well received! Thanks for such a great recipe!

    Reply
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Hi, I'm Liz! I'm passionate about creating reliable, foolproof recipes that don't just tell you how to cook, but why things work - so you can skip the guesswork and confidently make the best sweet and savory dishes of your life.

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