These Cake Mix Cupcakes are my go-to when I want big flavor without a ton of fuss. They use a boxed chocolate cake mix plus instant pudding to give the crumb a tender, almost bakery-level moistness. I love them for last-minute parties, school events, and quiet Sunday baking sessions when I want something comforting and reliable.
The batter comes together in one bowl and the frosting is a straightforward chocolate buttercream that pipes beautifully. There are a few small details that make a big difference—using hot water or coffee to bloom the cocoa in the mix, folding in mini chips for texture, and beating the butter long enough so the frosting isn’t greasy.
Below you’ll find an exact, step-by-step guide using the recipe quantities I follow every time, plus shopping tips, troubleshooting, and options if you want to adapt the cupcakes for different needs. I keep this post practical—clear steps and honest tips so you succeed on the first bake.
Shopping List
- Boxed chocolate cake mix (13.25-ounce Super Moist Chocolate Fudge)
- Instant chocolate pudding mix (3.9-ounce)
- Fresh dairy: eggs, sour cream, unsalted butter, heavy cream
- Pantry: vegetable or canola oil, vanilla extract, powdered sugar, Dutch-process cocoa powder, table salt
- Mix-ins and extras: mini chocolate chips or a chocolate bar, cupcake liners
- Optional: coffee (for the hot liquid) if you want a deeper chocolate flavor
Ingredients
- 3 large eggs — provide structure and richness; bring to room temperature for even mixing.
- 3/4 cup sour cream — adds moisture and a slight tang that keeps cupcakes tender.
- 3/4 cup vegetable or canola oil — keeps crumbs soft and extends freshness compared to butter-only batters.
- 1 tablespoon vanilla extract — balances chocolate and lifts flavor.
- 1 (13.25-ounce) box Super Moist Chocolate Fudge Cake Mix — the base for flavor and structure; use the specified size box.
- 1 (3.9-ounce) package instant chocolate pudding mix — key to the extra-moist crumb and closer-to-scratch texture.
- 1/2 cup hot water or coffee — hydrates the mix; coffee deepens chocolate flavor if you choose it.
- 1 cup mini chocolate chips or chocolate bar — adds pockets of melty chocolate and texture; chop a bar into mini-sized pieces if using that option.
- 20 tablespoons unsalted butter, room temperature — the base for a rich, pipeable chocolate buttercream; room temp is essential for proper creaming.
- 3 cups powdered sugar — sweetens and stabilizes the buttercream; sift if you see lumps.
- 3/4 cup Dutch-process cocoa powder — gives the frosting a deep, rounded chocolate flavor and smooth color.
- 3 tablespoons heavy cream — adjusts frosting consistency so it pipes smoothly.
- 1 teaspoon vanilla extract — rounds and brightens the frosting.
- 1/16 teaspoon salt — balances sweetness and deepens chocolate notes.
Cake Mix Cupcakes: Step-by-Step Guide
- Preheat the oven to 350°F (176°C). Line two 12-cup muffin pans with liners (this recipe makes about 24 cupcakes). Set pans aside.
- In a large bowl, whisk the 3 large eggs with a fork until blended. Add 3/4 cup sour cream, 3/4 cup vegetable or canola oil, and 1 tablespoon vanilla extract; stir until completely combined.
- Add the 1 (13.25-ounce) box Super Moist Chocolate Fudge cake mix and the 1 (3.9-ounce) package instant chocolate pudding mix to the wet ingredients. Stir a few times just to moisten the dry ingredients.
- Pour in 1/2 cup hot water or coffee and mix until the batter is just combined. Do not overmix.
- Fold in 1 cup mini chocolate chips. If using a chocolate bar instead, chop it into pieces about the size of mini chips before folding in.
- Fill each cupcake liner about 3/4 full with batter.
- Bake one pan at a time for 18–23 minutes, or until a toothpick inserted in the center comes out clean or with a few moist crumbs and the tops spring back when lightly touched.
- Remove the pan from the oven and let the cupcakes cool in the pan for 5–10 minutes. Transfer the cupcakes to a wire rack and let them cool completely before frosting.
- For the frosting, place 20 tablespoons unsalted butter (room temperature) in the bowl of a stand mixer fitted with the paddle attachment (or use a handheld mixer). Beat on medium speed for 3–4 minutes, until the butter is pale and fluffy.
- With the mixer on low, add 3 cups powdered sugar, 3/4 cup Dutch-process cocoa powder, and 1/16 teaspoon salt. Mix on low until the dry ingredients are incorporated and no large dry streaks remain.
- Add 3 tablespoons heavy cream and 1 teaspoon vanilla extract. Increase the mixer to medium and beat until the frosting is smooth and spreadable, about 1–2 minutes.
- Transfer the frosting to a piping bag fitted with a star tip (or use a knife or spatula) and frost the completely cooled cupcakes.
- Cupcakes are best enjoyed within 1–3 days.
What Makes This Recipe Special
There are a few simple tricks here that push these cupcakes beyond “boxed mix” level. The instant pudding adds extra moisture and body that a plain mix can’t match. Sour cream contributes fat and tang so the texture stays soft instead of drying out over a day or two. The hot water or coffee wakes up the chocolate flavor latent in the mix—coffee won’t make the cupcakes taste like coffee, it just intensifies chocolate.
The frosting is intentionally rich: using a full 20 tablespoons of butter creates a stable, decadent buttercream that pipes cleanly and holds its shape. Adding Dutch-process cocoa gives a smoother, less acidic chocolate flavor than natural cocoa, which pairs nicely with the sweeter cake base.
Low-Carb/Keto Alternatives
This is fundamentally a rich, chocolate-forward, sugar-based recipe, so a straight keto conversion isn’t plug-and-play. If you need a lower-carb approach, consider these high-level options without changing the recipe’s balance of wet to dry ingredients:
- Use a sugar-free or low-carb chocolate cake mix designed for low-carb diets, and swap instant pudding for a compatible sugar-free mix where available.
- For the frosting, use a powdered sugar substitute suitable for baking (check package guidance for confectioners-style substitutes) and keep the butter and cocoa; you may need to adjust cream to reach a pipeable consistency.
- Sour cream and heavy cream are already keto-friendly in small quantities; reduce mini chips or use sugar-free chocolate chips.
These swaps require trial—texture and bake times will vary—so make one small batch first to judge results.
Tools of the Trade
- Muffin pans (two 12-cup pans)
- Cupcake liners
- Large mixing bowl and whisk or fork
- Stand mixer with paddle attachment or handheld mixer
- Rubber spatula for folding
- Wire cooling rack
- Toothpick (for doneness checks)
- Piping bag and star tip (optional) or offset spatula for spreading
- Measuring cups and spoons
Errors to Dodge
- Overmixing batter — it develops gluten and yields dense cupcakes. Mix just until combined after adding the hot liquid.
- Baking both pans at once if your oven has hot spots — the recipe recommends baking one pan at a time for even results.
- Frosting with warm or cold butter — the butter must be room temperature; too warm and frosting will be greasy, too cold and it won’t whip airy.
- Filling liners past 3/4 full — that invites spillover and domed, uneven tops.
- Skipping the cooling step — frosting warm cupcakes causes buttercream to melt and slide off.
Nutrition-Minded Tweaks
If nutrition is a focus, small changes can reduce sugar and calories per cupcake without ruining texture:
- Reduce the amount of frosting applied per cupcake—thin swirls or a simple dusting of cocoa or confectioners’ sugar cuts calories quickly.
- Swap mini chips for a few cacao nibs or omit them to cut sweet bits from the crumb.
- Use lower-fat sour cream or a mix of sour cream and plain Greek yogurt to trim fat while retaining moisture; keep in mind texture will be subtly different.
Chef’s Notes
Use hot coffee if you want a slightly deeper chocolate profile—espresso or strong brewed coffee works well. If you prefer a purely chocolate-forward batter, stick with hot water. When folding in chips, be gentle so you don’t deflate the aeration you created in the wet mix.
For the frosting, if it feels too stiff after adding the powdered sugar and cocoa, add heavy cream one teaspoon at a time until you reach a spreadable consistency. If it’s too soft, chill the bowl briefly and then re-whip to firm it up. A light dusting of cocoa powder on top of the piped frosting looks professional and balances sweet notes.
Leftovers & Meal Prep
Store frosted cupcakes in an airtight container at room temperature for up to 24 hours; after that, refrigerate and bring to room temperature before serving (about 30 minutes) so the frosting softens. Unfrosted cupcakes freeze well—wrap individually in plastic wrap and freeze in a single layer for up to 2 months. Thaw in the refrigerator or on the counter, then frost when ready.
To prep ahead, bake and freeze unfrosted cupcakes, or make the frosting in advance and store it in an airtight container in the refrigerator for up to 3 days. Re-whip the chilled frosting briefly before piping.
Handy Q&A
- Can I use a different cake mix? Yes. Flavor and texture will vary by brand. Stick to the 13.25-ounce size for consistent results.
- Do I have to use instant pudding? The instant pudding is responsible for extra moisture and body. Omitting it will make a more standard boxed-cake texture.
- Can I freeze frosted cupcakes? You can, but the texture of the frosting may change slightly. For best results freeze unfrosted cupcakes and frost after thawing.
- Why did my cupcakes sink? Overmixing, opening the oven too early, or an underbaked center can cause sinking. Stick to the bake time range and perform the toothpick test near the lower end, increasing time as needed.
- How do I get a darker frosting? Increase Dutch-process cocoa slightly or use a mix of dark cocoa and regular Dutch-process. Taste as you go; darker cocoa can increase perceived bitterness so balance with powdered sugar if needed.
In Closing
These Cake Mix Cupcakes strike a comfortable balance between convenience and bakery-quality results. The pudding and sour cream are the quiet stars that keep the crumb tender, while the butter-rich frosting makes each bite feel indulgent. Follow the steps, mind the small tips about temperature and mixing, and you’ll have a crowd-pleasing batch every time.
Happy baking—send me a photo if you try them. I love seeing how readers personalize these cupcakes, whether with sprinkles, a swirl of salted caramel, or a simple dusting of cocoa.
Cake Mix Cupcakes
Ingredients
Ingredients
- 3 largeeggs
- 3/4 cupsour cream
- 3/4 cupvegetableor canola oil
- 1 tablespoonvanilla extract
- 1 13.25-ounce boxSuper Moist Chocolate Fudge Cake Mix
- 1 3.9-ounce packageinstant chocolate pudding mix
- 1/2 cuphot wateror coffee
- 1 cupmini chocolate chipsor chocolate bar
- 20 tablespoonsunsalted butterroom temperature
- 3 cupspowdered sugar
- 3/4 cupDutch process cocoa powder
- 3 tablespoonsheavy cream
- 1 teaspoonvanilla extract
- 1/16 teaspoonsalt
Instructions
Instructions
- Preheat the oven to 350°F (176°C). Line two 12-cup muffin pans with liners (this recipe makes about 24 cupcakes). Set pans aside.
- In a large bowl, whisk the 3 large eggs with a fork until blended. Add 3/4 cup sour cream, 3/4 cup vegetable or canola oil, and 1 tablespoon vanilla extract; stir until completely combined.
- Add the 1 (13.25-ounce) box Super Moist Chocolate Fudge cake mix and the 1 (3.9-ounce) package instant chocolate pudding mix to the wet ingredients. Stir a few times just to moisten the dry ingredients.
- Pour in 1/2 cup hot water or coffee and mix until the batter is just combined. Do not overmix.
- Fold in 1 cup mini chocolate chips. If using a chocolate bar instead, chop it into pieces about the size of mini chips before folding in.
- Fill each cupcake liner about 3/4 full with batter.
- Bake one pan at a time for 18–23 minutes, or until a toothpick inserted in the center comes out clean or with a few moist crumbs and the tops spring back when lightly touched.
- Remove the pan from the oven and let the cupcakes cool in the pan for 5–10 minutes. Transfer the cupcakes to a wire rack and let them cool completely before frosting.
- For the frosting, place 20 tablespoons unsalted butter (room temperature) in the bowl of a stand mixer fitted with the paddle attachment (or use a handheld mixer). Beat on medium speed for 3–4 minutes, until the butter is pale and fluffy.
- With the mixer on low, add 3 cups powdered sugar, 3/4 cup Dutch-process cocoa powder, and 1/16 teaspoon salt. Mix on low until the dry ingredients are incorporated and no large dry streaks remain.
- Add 3 tablespoons heavy cream and 1 teaspoon vanilla extract. Increase the mixer to medium and beat until the frosting is smooth and spreadable, about 1–2 minutes.
- Transfer the frosting to a piping bag fitted with a star tip (or use a knife or spatula) and frost the completely cooled cupcakes.
- Cupcakes are best enjoyed within 1–3 days.
Equipment
- Muffin panwith liners
- Stand mixer
- Cooling rack
Notes
Note 1
: The cupcakes need to be elevated on a wire cooling rack so air can circulate around all sides as they cool. Otherwise, moisture will condense on the bottom of the cupcakes, making them damp and slightly sticky.
Mini Cupcakes
: Line a miniature muffin tin with liners and add about 1 rounded tablespoon batter into each. Bake for 10–15 minutes or until a toothpick comes out clean or with a few moist crumbs. Repeat with the remaining batter.
Storage
: Store cupcakes in an airtight container at room temperature. To freeze unfrosted cupcakes, cool completely, then place on a sheet pan in the freezer for 30 minutes. Wrap each cupcake individually in plastic wrap and transfer to large freezer bags; store for 2–3 months. Thaw at room temperature, then frost as desired. They will be slightly more moist but still delicious!
