Chocolate Cupcakes

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Sweet enough for kids but intensely chocolate enough for grown-ups, these are my go-to chocolate cupcakes.

Chocolate cupcakes on an elevated serving dish.

Starting a baking business specializing in cakes and cupcakes sparked my passion for creating recipes, which was the impetus for creating Once Upon a Chef many years ago. These chocolate cupcakes, a delicious discovery from that time (and the mini version of my favorite chocolate cake), have been my go-to ever since. The cake recipe is wonderfully simple—a one-bowl recipe that and yields an ultra moist, deeply chocolate, and tender crumb. And the chocolate buttercream, modestly adapted from Cook’s Illustrated, is fast and foolproof—a welcome change from most homemade chocolate frostings, which can be temperamental and take hours to set.

“Delicious!!! So perfect for the chocolate lover in me!”

Nancy

What You’ll Need To Make Chocolate Cupcakes

For the Cupcakes

chocolate cake ingredients
  • All-Purpose Flour: The foundation of the cupcakes. For accurate measuring, use the spoon and level method: spoon the flour into your measuring cup and level it off with the back of a knife.
  • Granulated Sugar: Adds sweetness and helps create a moist and tender crumb.
  • Unsweetened Natural Cocoa Powder: Key for that rich chocolate flavor. It’s important to note that natural cocoa powder isn’t interchangeable with Dutch-process cocoa powder due to differences in acidity.
  • Baking Powder and Baking Soda: These leavening agents help your cupcakes rise and become light and fluffy. (Understand the difference between baking soda vs baking powder.)
  • Eggs: Add structure, richness, and stability to the batter.
  • Vegetable Oil: Adds moisture to the cupcakes, ensuring they’re soft and not dry. Oil-based cakes tend to stay moist longer than those made with butter.
  • Sour Cream: A secret weapon for moistness! Sour cream not only adds richness and a subtle tang but also reacts with baking soda for a tender texture.
  • Vanilla Extract: Rounds out the sweetness and brings complexity to the overall taste.
  • Boiling Water: Adds moisture and intensifies the cocoa’s flavor, resulting in a more robust chocolate taste.
  • Jump to the printable recipe for precise measurements

For the Frosting

Cupcake ingredients, including vanilla, corn syrup, and cocoa.
  • Milk or Semi-Sweet Chocolate: Choose based on your preference for sweetness. Milk chocolate offers a milder, sweeter taste, while semi-sweet chocolate adds a deeper chocolate flavor. The quality of the chocolate can significantly affect the frosting’s flavor, so opt for a good brand.
  • Unsalted Butter: Make sure it’s softened but still cool, which ensures that it blends well without becoming too runny. Unsalted butter allows you to control the frosting’s saltiness more precisely.
  • Confectioners’ Sugar: This finely ground sugar, also known powdered sugar, dissolves easily, preventing any grittiness in the frosting.
  • Natural Unsweetened Cocoa Powder: Adds a rich and deep chocolate flavor.
  • Light Corn Syrup: Adds gloss and sheen to the frosting, making it smooth and spreadable. It also helps in stabilizing the texture.
  • Vanilla Extract: Rounds out the flavors and adds depth.
  • Jump to the printable recipe for precise measurements

Step-by-Step Instructions

Step 1: Make the Cupcakes

In the bowl of a stand mixer fitted with the paddle attachment, combine the flour, sugar, cocoa powder, salt, baking powder, and baking soda. Mix on low speed for 30 seconds to combine.

mixed dry ingredients

Add the eggs, oil, and sour cream.

adding eggs, oil, and sour cream

Mix on low speed until combined.

chocolate cake batter with wet ingredients mixed in

Increase the speed to medium and beat for 2 minutes. Then, reduce the speed to low and gradually pour in the hot water (be careful to pour very slowly so it doesn’t splash). The batter will be soupy. Stop the mixer and scrape down the sides and bottom of the bowl; mix again until evenly combined.

chocolate cake batter

Divide the batter evenly into the cupcake liners.

chocolate cupcakes ready to bake

Bake for 18 to 20 minutes, or until the cupcakes are set and a toothpick inserted into the center of a cupcake comes out clean.

chocolate cupcakes cooling on rack

Cool the cupcakes in the pan for about 10 minutes, then transfer them to a rack to cool completely.

chocolate cupcakes cooling on rack

Step 2. Make the Frosting

Place the chocolate in a microwave-safe bowl.

milk chocolate pieces in bowl

Cook in the microwave in 20-second intervals, stirring in between, until it’s about three-quarters of the way melted. Stir, allowing the residual heat in the bowl to melt the remaining chocolate completely. (If necessary, place the chocolate back in microwave for a few seconds.) Set aside to cool.

Melted chocolate in a bowl.

In a food processor, combine the butter, confectioners’ sugar, cocoa powder and salt.

butter, confectioners sugar, and cocoa powder in food processor

Process until smooth, about 30 seconds, scraping down the sides of the bowl as needed. Then add the corn syrup and vanilla.

adding the corn syrup and vanilla to the chocolate frosting

Process until just combined, 5 to 10 seconds. Scrape down the sides of the bowl, then add the lukewarm melted chocolate. Pulse until smooth and creamy, 10 to 15 seconds. Do not overmix.

finished silky chocolate frosting

When the cupcakes have cooled, use a small offset spatula or butter knife to swirl the frosting on top.

Chocolate cupcakes on an elevated serving dish.

Frequently Asked Questions

Can I make these cupcakes in advance? How should I store them?

Yes, you can make these cupcakes a day in advance. Once they have completely cooled, store them in an airtight container at room temperature.

Can the cupcakes be frozen?

Yes, the cupcakes can be frozen without the frosting for up to 3 months. Let them cool completely, wrap them individually in plastic wrap, and then in foil. Thaw them overnight on the countertop before serving. (Wait until the cupcakes are completely defrosted to ice them.)

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Chocolate Cupcakes

Sweet enough for kids but intensely chocolate enough for grown-ups, these are my go-to chocolate cupcakes.

Servings: 24 cupcakes
Cook Time: 20 Minutes
Total Time: 1 Hour

Ingredients

For the Cupcakes

  • 1½ cups all-purpose flour, spooned into measuring cup and leveled off with knife
  • 1½ cups granulated sugar
  • ¾ cup unsweetened natural cocoa powder, such as Hershey’s
  • ¾ teaspoon salt
  • 1½ teaspoons baking powder
  • ¾ teaspoon baking soda
  • 2 large eggs, lightly beaten
  • ¼ cup vegetable oil
  • ¾ cup sour cream
  • 1 teaspoon vanilla extract
  • ¾ cup boiling water

For the Frosting

  • 8 ounces milk or semi-sweet chocolate, broken into small pieces (see note)
  • 2½ sticks (20 tablespoons) unsalted butter, softened but still cool
  • 1¼ cups Confectioners' sugar
  • ¾ cup natural unsweetened cocoa powder, such as Hershey's
  • Pinch salt
  • ¾ cup light corn syrup
  • 1 teaspoon vanilla extract

Instructions

For the Cupcakes

  1. Preheat the oven to 350°F and set two oven racks in the centermost positions. Line two 12-cup muffin tins with paper liners.
  2. In the bowl of a stand mixer fitted with the paddle attachment, combine the flour, sugar, cocoa powder, salt, baking powder, and baking soda. Mix on low speed for 30 seconds to combine. Add the eggs, oil, sour cream, and vanilla and mix on low speed until combined.
  3. Increase the speed to medium and beat for 2 minutes. Then, reduce the speed to low and gradually pour in the hot water (be careful to pour very slowly so it doesn’t splash). The batter will be soupy. Stop the mixer and scrape down the sides and bottom of the bowl; mix again until evenly combined.
  4. Pour the batter evenly into the prepared muffin tins (they should be about halfway full). Bake for 18 to 20 minutes, or until the cupcakes are set and a toothpick inserted into the center of a cupcake comes out clean.
  5. Cool the cupcakes in the pans for about 10 minutes, then transfer them to a wire rack to cool completely.

For the Frosting

  1. Place the chocolate in a microwave-safe bowl and cook in the microwave in 20-second intervals, stirring in between, until about three-quarters of the way melted. Stir, allowing the residual heat in the bowl to melt the remaining chocolate completely. (If necessary, place the chocolate back in microwave for a few seconds.) Set aside to cool.
  2. In a food processor, process the butter, sugar, cocoa powder and salt until smooth, about 30 seconds, scraping down the sides of the bowl as needed. Add the corn syrup and vanilla and process until just combined, 5 to 10 seconds. Scrape down the sides of the bowl, then add the lukewarm chocolate and pulse until smooth and creamy, 10 to 15 seconds. Do not overmix. The frosting can be used immediately or held at room temperature for up to 3 hours.
  3. When the cupcakes are completely cool, use a small offset spatula or butter knife to swirl the frosting lavishly over top. The cupcakes are best enjoyed fresh on the day they are made, but they will keep for two days stored in an airtight container at room temperature.
  4. Note: If making this cake for children, I recommend using milk chocolate for the frosting (Hershey or Lindt milk chocolate bars work well). Semi-sweet chocolate will lend a more intense chocolate flavor (Ghirardelli bars for baking are ideal).
  5. Make-Ahead/Freezer-Friendly Instructions: The cupcakes can be made up to one day ahead of time and stored in an airtight container at room temperature. They can also be frozen without the frosting for up to 3 months. Let them cool completely, wrap them individually in plastic wrap, and then in foil. Thaw overnight on the countertop before serving. (Wait until the cupcakes are defrosted to ice them.)

Nutrition Information

Powered by Edamam

  • Serving size: 1 cupcake
  • Calories: 320
  • Fat: 17 g
  • Saturated fat: 9 g
  • Carbohydrates: 42 g
  • Sugar: 32 g
  • Fiber: 3 g
  • Protein: 3 g
  • Sodium: 161 g
  • Cholesterol: 47 mg

This website is written and produced for informational purposes only. I am not a certified nutritionist and the nutritional data on this site has not been evaluated or approved by a nutritionist or the Food and Drug Administration. Nutritional information is offered as a courtesy and should not be construed as a guarantee. The data is calculated through an online nutritional calculator, Edamam.com. Although I do my best to provide accurate nutritional information, these figures should be considered estimates only. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Furthermore, different online calculators provide different results depending on their own nutrition fact sources and algorithms. To obtain the most accurate nutritional information in a given recipe, you should calculate the nutritional information with the actual ingredients used in your recipe, using your preferred nutrition calculator.

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Comments

  • How would I make these onto mini cupcakes?

    • Hi Anita, Mini cupcakes would be fine. I’d start checking them for doneness at about 12 minutes. Enjoy!

  • is it ok to make this using cake flour?

    • Hi Pete, I’d recommend sticking to all-purpose flour for the best results. Sorry!

  • Hi,

    We are going to make the chocolate cake recipe from your cookbook. Can we use dutch processed cocoa powder instead of natural?

    Thanks!

    • Hi Bry, I’d recommend sticking with natural cocoa powder for the cake. Sorry!

      • Hi Jenn, love your recipes. I made these cupcakes for my son’s birthday. His Verdict was they were phenomenal and he has now requested chocolate layer cake for Christmas Day. What is the cooking time if I were to use this recipe for a 9 inch layer cake (2 layers)

        Thanks so much,
        Linda

  • Hi Jenn,

    Love this recipe. I now have made 28 cupcakes from this, and have lots of frosting leftover. Please let me know the best way to store this extra frosting. Also, what’s the best way to handle leftover cupcakes – fridge? freezer?

    Thank you!
    Tara

    • Hi Tara, Glad you liked the cupcakes! I’ve never frozen frosting so I can’t say from experience, but just googled it and it looks like you can. See some tips here. If you have leftover cupcakes that you plan to eat relatively soon, I’d store them in the fridge. Just let them come to room temperature before you eat them.

  • Do you think a white frosting would go good with these chocolate cupcakes instead of chocolate frosting? Would the frosting from the recipe from the Vanilla Cupcakes with Cream Cheese Frosting work with these?
    https://www.onceuponachef.com/recipes/buttermilk-cupcakes-cream-cheese-frosting.html#tabreviews
    Or would the frosting from the recipe Vanilla Birthday Cake with Old-Fashioned Vanilla Buttercream work?
    https://www.onceuponachef.com/recipes/vanilla-birthday-cake-with-old-fashioned-vanilla-buttercream.html#tabreviews
    What is your advice? Thank you!

    • Hi Heather, Sure, vanilla frosting would be just fine with these cupcakes. Either would work, but if I had to choose, I’d go with the frosting from the vanilla birthday cake (it’s less cream cheesy which I think would go better with chocolate). Hope that helps and that you enjoy!

  • Hi Jenn!
    I just sat down with your cookbook and read through the recipe for chocolate lover’s birthday cake, this will be perfect for my son’s birthday. Thank you so much

  • Hi Jenn,
    Can I ask what does the corn syrup do for the frosting? I have made the chocolate cupcakes but used your cream cheese frosting with it and it turned out incredibley delicious, moist and rich in chocolate flavour – everyone loved them! I would like to try the chocolate icing for the next batch but we don’t use corn syrup (allergies) and I am wondering if there is somethinge else I can use as replacement or can I leave it out completely? Thanks so much!

    • Hi Trish, Unfortunately, you really need to corn syrup as it stabilizes the frosting. I would just use a basic chocolate buttercream, like this one. Hope that helps!

  • Can this recipe be successfully cut in half?

  • Hi Jenn — I just made the chocolate lovers cake from your book. DELISH!!

    Should I store this in the fridge? I would like to prolong it’s life…

    Thank you!

    • So glad you liked it, Eve! It will keep well for several days at room temperature but you can keep it in the fridge for longer storage; just be sure to bring it to room temperature before serving.

  • Hi Jen, can i use this recipe for a layer cake? Thanks

    • Hi Hanna, If you want to make a layer cake, I’d suggest this recipe instead. Hope you enjoy!

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