Chocolate Cupcakes

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Rich, moist, and deeply chocolatey, these classic chocolate cupcakes are easy to make and perfect for birthdays, bake sales, and everyday treats.

Chocolate cupcakes on an elevated serving dish.

Many years ago, before Once Upon a Chef existed, I started a small baking business specializing in cakes and cupcakes. That experience sparked my love of recipe development and ultimately inspired me to create this website. This chocolate cupcake recipe is a delicious holdover from those early days—the cupcake version of my favorite chocolate cake—and I’ve been making them ever since.

The recipe is wonderfully simple: it’s made in one bowl, and the cupcakes bake up ultra-moist with a rich chocolate flavor and tender crumb. I love to frost them with rich chocolate buttercream, but vanilla buttercream frosting or cream cheese frosting are delicious too.

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

Nancy

What You’ll Need For this Chocolate Cupcake Recipe

chocolate cake ingredients

For the cupcakes, you’ll need all-purpose flour, granulated sugar, unsweetened cocoa powder, baking powder, baking soda, eggs, vegetable oil, sour cream, and vanilla extract.

Step-by-Step Instructions

Step 1: Mix the dry ingredients. 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 for 30 seconds.

Pro Tip: Make sure to stick with natural cocoa powder—natural cocoa powder isn’t interchangeable with Dutch-process cocoa powder due to differences in acidity.

mixed dry ingredients

Step 2: Add the wet ingredients. Add the eggs, oil, and sour cream, and mix on low speed until combined.

adding eggs, oil, and sour cream

Step 2: Beat the batter. Increase the speed to medium and beat the batter for 2 minutes.

chocolate cake batter with wet ingredients mixed in

Step 3: Add the hot water. Reduce the speed to low and gradually pour in the hot water—go slowly so it doesn’t splash. Stop the mixer, scrape down the sides and bottom of the bowl, and mix until evenly combined.

Pro tip: The hot water blooms the cocoa powder, which deepens the chocolate flavor significantly. The soupy batter is completely normal, so don’t worry if it looks thinner than you’d expect.

chocolate cake batter

Step 4: Bake and cool. Divide the batter evenly into the cupcake liners and bake for 18 to 20 minutes, until set and a toothpick inserted in the center comes out clean. Cool in the pan for 10 minutes, then transfer to a rack to cool completely.

chocolate cupcakes cooling on rack

Step 5: Frost the cupcakes. Once the cupcakes have cooled, use a small offset spatula or butter knife to swirl the frosting on top. The cupcakes can be made a day ahead and stored in an airtight container at room temperature. Freeze (without the frosting) for longer storage.

Chocolate cupcakes on an elevated serving dish.

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Chocolate Cupcakes

Chocolate cupcakes on an elevated serving dish.
Ultra-moist and deeply chocolatey, these one-bowl chocolate cupcakes are a tried-and-true favorite.
Servings: 18 cupcakes
Cook Time: 20 minutes
Total Time: 1 hour

Ingredients 

For the Cupcakes

  • cups all-purpose flour, spooned into measuring cup and leveled-off
  • cups granulated sugar
  • ¾ cup natural unsweetened cocoa powder, such as Hershey’s
  • ¾ teaspoon salt
  • 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
  • Chocolate frosting

Instructions

For the Cupcakes

  • Preheat the oven to 350°F (175°C) and set two oven racks in the middle positions. Line 18 muffin cups with paper liners, using two standard 12-cup muffin pans.
  • 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.
  • 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.
  • Pour the batter evenly into the prepared muffin tin (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.
  • Cool the cupcakes in the tin for about 10 minutes, then transfer them to a wire rack to cool completely. Frost the cooled cupcakes as desired.

Notes

  • I like frosting these cupcakes with chocolate buttercream, but vanilla buttercream frosting, or cream cheese frosting are delicious too.
  • Nutritional information is for the cupcakes only.
  • Make-Ahead/Freezing 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

Per serving (18 servings)Calories: 167kcalCarbohydrates: 28gProtein: 2gFat: 6gSaturated Fat: 2gCholesterol: 26mgSodium: 139mgFiber: 2gSugar: 17g

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.

4.82 from 59 votes

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239 Comments

  • 5 stars
    Hi, Jenn. These cupcakes are delicious as is the Chocolate Lover’s Cake. Can the frosting be frozen until I am ready to frost the cupcakes? Thanks so much!

    • — Elaine Spielberg on July 27, 2024
    • Reply
    • Hi Elaine, Glad you like these! I’ve never frozen frosting so I can’t say from experience, but just googled it and it looks like you can. If you try it, I’d love to hear how it is once you thaw it. 😊

      • — Jenn on July 29, 2024
      • Reply
      • 5 stars
        I did freeze the frosting and it worked beautifully. It was just as delicious! Thank you.

        • — Elaine Spielberg on August 13, 2024
        • Reply
        • So glad to hear that (and helpful for me to know!) – thanks for reporting back. 😊

  • Hi Jen,

    Just a question..
    I’m just wondering if there’s a suitable alternative for the corn syrup in the frosting? I understand it’s used for helping to create a shiny frosting – is that right? Thanks, Nicole

    • — Nicole on June 20, 2024
    • Reply
    • Unfortunately, there’s no real replacement for the corn syrup here. But I’m trying to let readers know that light corn syrup and high-fructose corn syrup (HFCS) often get lumped together, but they’re actually quite different. Light corn syrup, made from cornstarch, is primarily glucose. HFCS also starts with cornstarch but goes through extra processing to convert some glucose into fructose, making it sweeter. You’ll see HFCS on food labels, but it isn’t sold in the supermarket and is not used for home baking. HFCS is what has been in the spotlight for its health implications. The critical difference between them boils down to fructose content. Light corn syrup contains little to no fructose, whereas HFCS is rich in fructose, which is at the heart of the health debates. Maybe a little too much information, but thought you may find it helpful. 😊 If you still don’t want to use corn syrup, I’d suggest using a basic chocolate buttercream frosting.

      • — Jenn on June 21, 2024
      • Reply
  • 4 stars
    Really good recipe! Made it with my Nana! They turned out great!!

  • 5 stars
    I make these cupcakes so many times and my whole family LOVES them. Yes, I had a lot frosting leftover, put it in a bowl with lid and saved it in the refrigerator; I used a week later in another recipe and it was perfectly fine.