These cupcakes are my go-to when I want deep chocolate flavor without a full-day commitment. They rely on a boxed cake mix boosted with instant pudding and extra fat for moistness, then topped with a rich, cocoa-heavy buttercream. The result is familiar, comforting chocolate with a texture that’s consistently tender.
I make this batch when I need about two dozen cupcakes — it’s the perfect scale for a small gathering, school event, or to freeze a few for later. The method is straightforward: mix wet ingredients, stir in the dry mix and a bit of hot liquid, fold in chips, bake, cool, and frost. Timing and a light hand with mixing are the small things that make a big difference.
Below you’ll find a compact shopping list, a clear ingredients breakdown with quick tips, step-by-step instructions straight from the recipe, and practical notes on tools, common errors, and ways to adapt the flavor or nutrition. No fluff — just how I actually bake these in my kitchen.
Shopping List
- Eggs — buy the size called for (3 large eggs).
- Sour cream — small container if you bake occasionally.
- Vegetable or canola oil — neutral oil for tender crumbs.
- Vanilla extract — keep on hand for batter and frosting.
- Box Super Moist Chocolate Fudge Cake Mix (13.25-ounce).
- Instant chocolate pudding mix (3.9-ounce package).
- Hot coffee or water — just enough for the batter.
- Mini chocolate chips or a chocolate bar to chop.
- Unsalted butter — room temperature for frosting (20 tablespoons).
- Powdered sugar and Dutch-process cocoa powder for the frosting.
- Heavy cream — a small carton.
- Salt — a pinch for balance in the frosting.
- Supplies: cupcake liners, piping bag and tip (optional), wire rack.
Cake Mix Cupcakes: Step-by-Step Guide
Ingredients
- 3 large eggs — structure and richness; bring to room temperature for better volume.
- 3/4 cup sour cream — adds moisture and a slight tang to balance sweetness.
- 3/4 cup vegetable or canola oil — keeps the crumb tender and extends shelf life.
- 1 tablespoon vanilla extract — enhances chocolate flavor in the batter.
- 1 (13.25‑ounce) box Super Moist Chocolate Fudge Cake Mix — the foundation of flavor; use the specified size box.
- 1 (3.9‑ounce) package instant chocolate pudding mix — boosts moisture and gives a denser, fudgier texture.
- 1/2 cup hot water or coffee — hydrates the dry mix; coffee intensifies chocolate notes.
- 1 cup mini chocolate chips or chocolate bar — for pockets of melty chocolate; chop a bar to the size of mini chips if using a bar.
- 20 tablespoons unsalted butter — room temperature, for a silky, buttery frosting base.
- 3 cups powdered sugar — sweetens and stabilizes the frosting; add in portions to avoid dust clouds.
- 3/4 cup Dutch‑process cocoa powder — deep, smooth cocoa flavor in the frosting.
- 3 tablespoons heavy cream — adjusts frosting consistency and adds richness.
- 1 teaspoon vanilla extract — rounds out the frosting flavor.
- 1/16 teaspoon salt — tiny amount to balance sweetness and lift flavor.
- Preheat the oven to 350°F (176°C). Line two muffin pans with liners (this recipe yields about 24 cupcakes). Set pans aside.
- In a large bowl, whisk the 3 large eggs until combined. Add 3/4 cup sour cream, 3/4 cup vegetable or canola oil, and 1 tablespoon vanilla extract; stir until smooth.
- 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 to moisten the dry mix.
- Add 1/2 cup hot water or hot coffee and mix just until combined. Do not overmix.
- Fold in 1 cup mini chocolate chips (or chopped chocolate cut to about the size of mini chips if using a chocolate bar).
- Fill each cupcake liner about 3/4 full. Bake one tray 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.
- Let the cupcakes cool in the pan for 5–10 minutes, then transfer them to a wire rack to cool completely before frosting.
- To make the frosting: in a medium bowl with a handheld mixer or in a stand mixer fitted with the paddle attachment, beat the 20 tablespoons unsalted butter at medium speed for 3–4 minutes until pale and creamy.
- Add the 3 cups powdered sugar and the 3/4 cup Dutch‑process cocoa powder in 2–3 additions, mixing on low after each addition until incorporated to avoid a sugar cloud; then increase to medium speed and beat until mostly smooth.
- Add 2 tablespoons of the 3 tablespoons heavy cream, the 1 teaspoon vanilla extract, and the 1/16 teaspoon salt. Beat on medium‑high until the frosting is smooth and fluffy, about 1‑2 minutes.
- If the frosting is still too thick to pipe, add the remaining 1 tablespoon heavy cream and beat briefly to combine. If the frosting is too thin, chill it 10‑20 minutes to firm before piping.
- Transfer the frosting to a piping bag fitted with a star tip (or use a spatula) and frost the completely cooled cupcakes. Store and enjoy within 1‑3 days.
What Makes This Recipe Special
This recipe uses two shortcuts that elevate the final cupcake: instant pudding and a boxed cake mix. The pudding mix adds extra starch and flavor that keeps the crumb moist and tender for longer than a straight mix-only recipe. The cake mix provides a reliable structure so these cupcakes are very forgiving even if you’re not weighing ingredients.
Adding hot water or coffee wakes up the cocoa in the batter, deepening the chocolate character without extra cocoa powder. Folding in mini chips creates melty pockets in each bite, so each cupcake has a contrast of soft cake and gooey chocolate.
Low-Carb/Keto Alternatives
If you need to adapt these cupcakes for lower carbs, the easiest path is to use low-carb or sugar-free mixes and substitutes rather than trying to convert every ingredient here. Look for a low-carb chocolate cake mix and a sugar-free instant pudding variant. Swap powdered sugar in the frosting for a powdered erythritol or monk-fruit blend designed for whipping.
Keep in mind that fat content affects texture — full-fat sour cream and butter help mimic the tenderness and mouthfeel here. Keto-friendly swaps will change bake times and texture, so test a small batch first and adjust bake time and chilling as needed.
Tools of the Trade
- Two standard 12-cup muffin pans — for baking 24 cupcakes in two batches.
- Cupcake liners — makes removal and cleanup easier.
- Large mixing bowl and whisk — for the wet ingredients.
- Spatula — for folding chips into batter without overmixing.
- Handheld mixer or stand mixer with paddle — for creaming the butter and smoothing the frosting.
- Piping bag and star tip (optional) — for pretty swirls on top; a spatula works too.
- Wire cooling rack — cool completely before frosting to avoid melting the buttercream.
- Toothpick — quick doneness check for the cupcakes.
Errors to Dodge
Do not overmix the batter once you add the cake mix and liquid. Overmixing develops gluten and leads to dense cupcakes. Mix just until combined and you still see a few streaks occasionally vanish.
Avoid frosting warm cupcakes. If the buttercream contacts warm cake it will soften and slide. Always cool on a wire rack until completely room temperature before piping or spreading on top.
Measure the butter for frosting correctly; 20 tablespoons is 2 1/2 sticks (in U.S. standard sticks). Using cold butter will make the frosting lumpy; too-warm butter will make it loose and greasy. Room temperature (soft but not shiny) is ideal.
Nutrition-Minded Tweaks
To shave calories without reinventing the recipe, try one or two simple swaps: use half-and-half instead of heavy cream in the frosting (you may need to chill briefly to firm it up), or reduce the powdered sugar by a small amount and increase cocoa powder slightly for a darker, less sweet frosting.
For slightly lighter cupcakes, swap half the oil for applesauce in the batter. That will change texture a bit, so only replace up to 50% for the most predictable results. Using dark chocolate chips with higher cocoa percentage will also reduce perceived sweetness.
Chef’s Notes
Room temperature ingredients blend more smoothly. I take the eggs and butter out 30–60 minutes before baking. If you forget, a quick 5‑10 minute rest on the counter gets them close enough.
If you want more intense cocoa in the frosting, add a teaspoon or two of instant espresso powder (dissolved in a little hot water) while mixing. No more than that — it’s meant to amplify chocolate, not make the frosting taste like coffee.
Want perfectly uniform cupcakes? Use a small ice cream scoop or a 1/4-cup measure to portion batter into liners so they bake evenly.
Leftovers & Meal Prep
These cupcakes store well for 1–3 days at room temperature in an airtight container. If you need longer, refrigerate up to 4–5 days; bring to room temperature before serving for the best texture. For longer-term storage, freeze unfrosted cupcakes for up to 2 months. Thaw overnight in the refrigerator and frost when ready to serve.
If you’ve frosted them and need to freeze, do a flash-freeze on a tray until the frosting is firm, then transfer to a container. Thaw in the refrigerator, then bring to room temperature before serving.
Handy Q&A
Can I use regular pudding instead of instant? Regular (cook-and-serve) pudding will change the liquid balance and texture; instant is the right choice here for convenience and consistency.
Can I substitute butter for the oil in the batter? Butter will add flavor but can make the crumb slightly denser. You can substitute, but keep in mind the batter’s texture may shift and cooling time could increase.
Why use hot coffee? Coffee amplifies chocolate flavor without adding a coffee taste when used in modest amounts. Hot water works fine if you prefer to avoid coffee.
How do I fix grainy frosting? If the powdered sugar isn’t fully incorporated, keep beating on medium speed for another minute. If it remains grainy, a short time in a mixer on higher speed—or warming slightly then re-beating—helps dissolve the sugar better.
In Closing
This recipe is the kind that feels like a secret handshake among busy bakers: minimal fuss, dependable results, and great chocolate impact. Follow the steps, mind the mixing, and don’t rush cooling. With a few simple techniques — room-temperature ingredients, careful mixing, and proper cooling — you’ll have moist cupcakes topped with a classic, silky chocolate buttercream that people will ask you to make again.
Make a batch, taste the difference the pudding and hot liquid make, and adjust the chips or frosting to your family’s preference. Happy baking — and enjoy every chocolatey bite.
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 muffin pans with liners (this recipe yields about 24 cupcakes). Set pans aside.
- In a large bowl, whisk the 3 large eggs until combined. Add 3/4 cup sour cream, 3/4 cup vegetable or canola oil, and 1 tablespoon vanilla extract; stir until smooth.
- 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 to moisten the dry mix.
- Add 1/2 cup hot water or hot coffee and mix just until combined. Do not overmix.
- Fold in 1 cup mini chocolate chips (or chopped chocolate cut to about the size of mini chips if using a chocolate bar).
- Fill each cupcake liner about 3/4 full. Bake one tray 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.
- Let the cupcakes cool in the pan for 5–10 minutes, then transfer them to a wire rack to cool completely before frosting.
- To make the frosting: in a medium bowl with a handheld mixer or in a stand mixer fitted with the paddle attachment, beat the 20 tablespoons unsalted butter at medium speed for 3–4 minutes until pale and creamy.
- Add the 3 cups powdered sugar and the 3/4 cup Dutch‑process cocoa powder in 2–3 additions, mixing on low after each addition until incorporated to avoid a sugar cloud; then increase to medium speed and beat until mostly smooth.
- Add 2 tablespoons of the 3 tablespoons heavy cream, the 1 teaspoon vanilla extract, and the 1/16 teaspoon salt. Beat on medium‑high until the frosting is smooth and fluffy, about 1–2 minutes.
- If the frosting is still too thick to pipe, add the remaining 1 tablespoon heavy cream and beat briefly to combine. If the frosting is too thin, chill it 10–20 minutes to firm before piping.
- Transfer the frosting to a piping bag fitted with a star tip (or use a spatula) and frost the completely cooled cupcakes. Store and enjoy 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!
