If you’re craving a decadent dessert that comes together in a snap, look no further than Busy Day Chocolate Cake. This old-fashioned classic never fails to deliver a big chocolate punch with minimal effort, thanks to a rich homemade batter and glossy icing—all ready in about an hour! Whether it’s a weeknight, a special celebration, or just the need for a pick-me-up, this cake always wows with its tender crumb and luxurious frosting.

Ingredients You’ll Need
Busy Day Chocolate Cake gets its magic from simple pantry staples—each bringing something wonderful to the table. These baking essentials create a melt-in-your-mouth crumb and an irresistible chocolate flavor that’s both nostalgic and crave-worthy. Here’s how each element plays a delicious role:
- White Sugar: Provides essential sweetness and helps keep your cake moist and tender from the first slice to the last.
- All-Purpose Flour: Lays the foundation for the cake’s structure and gives it the perfect bite—not too dense, not too light.
- Cocoa Powder: Delivers deep chocolate flavor and rich color—use a good-quality, unsweetened kind for best results.
- Baking Soda and Baking Powder: These two leaveners team up for a cake that rises beautifully with a soft, fluffy texture.
- Salt: Just a hint balances out the sweetness and sharpens every other flavor.
- Eggs: Bind everything together while adding richness and lightness as the cake bakes.
- Buttermilk: Adds luscious tang and keeps the crumb supremely moist.
- Vanilla Extract: Lends a complex, sweet aroma that ties the chocolate notes together.
- Hot Coffee: Intensifies the chocolate and ensures a super tender crumb—don’t worry, your cake won’t taste like coffee.
- Vegetable Oil: Guarantees a super-moist texture and keeps the cake soft, even days after baking.
- Butter (for icing): The base for an indulgent homemade frosting that croons with buttery richness.
- More Cocoa Powder (for icing): Doubles down on that bold chocolate flavor.
- Powdered Sugar (for icing): Melts seamlessly into the frosting, providing smoothness and sweetness.
- More Coffee (for icing): Enhances the chocolate flavors in your frosting and helps achieve perfect spreading consistency.
- Extra Vanilla (for icing): A finishing note that brings the whole cake together with old-school bakery charm.
How to Make Busy Day Chocolate Cake
Step 1: Prep the Pan and Preheat
First things first: set your oven to 375°F so it’s ready to roll. While it’s heating, grease and flour a 9×13-inch cake pan thoroughly—if you want an extra-deep chocolate hit, dust the pan with cocoa powder instead of flour. This sets the stage for our Busy Day Chocolate Cake to slide out cleanly and look picture-perfect.
Step 2: Mix the Dry Ingredients
Grab a large bowl and whisk together the sugar, flour, cocoa powder, baking soda, baking powder, and salt. This simple combo ensures dry ingredients are evenly distributed, setting you up for a cake that bakes up evenly from edge to edge.
Step 3: Add Wet Ingredients and Mix
Now, add the eggs, buttermilk, vanilla, hot coffee, and vegetable oil all at once to your dry mix. Beat on medium speed for about two minutes—don’t be alarmed if your batter looks a little thin, that’s exactly what you want for a super-moist Busy Day Chocolate Cake.
Step 4: Pour and Bake
Carefully pour your batter evenly into the prepared cake pan, smoothing the top with a spatula. Slide it into the hot oven and bake for 30–40 minutes. When a toothpick inserted in the center pops out clean, your kitchen will smell like heaven and your cake is ready to roll. Let it cool in the pan for about 10 minutes before moving on to the magic: icing!
Step 5: Make the Icing
In a medium saucepan, gently melt the butter over medium-low heat. Take the pan off the heat to whisk in the cocoa powder, then return it to the stove briefly until just beginning to boil—don’t let it bubble madly! Off the heat again, whisk in the sifted powdered sugar, coffee, and vanilla for a glossy, pourable frosting. Let it cool for 10 minutes—just enough so it sets up, but not so much that it’s hard to spread.
Step 6: Frost the Cake
Spoon the slightly cooled icing onto your warm cake and spread it evenly all over. It’ll glide across the surface, hugging every corner. Resist the urge to let the icing cool too long—it should be soft, shiny, and ready to set into a fudgy layer no one can resist.
How to Serve Busy Day Chocolate Cake

Garnishes
The finishing touches make every piece feel thoughtful! Sprinkle with chocolate shavings, a dusting of powdered sugar, or a few fresh raspberries. Even a drizzle of caramel or a dollop of whipped cream lifts Busy Day Chocolate Cake to celebration status.
Side Dishes
Pair your chocolate cake with a scoop of vanilla ice cream, a swirl of lightly sweetened whipped cream, or a fresh fruit salad. Each side helps balance the richness and brings contrast to the deep flavors—perfect for a crowd or an impromptu treat.
Creative Ways to Present
For something special, cut the cake into individual squares, place on a dessert platter, and top each square with a fancy garnish. You can also serve Busy Day Chocolate Cake in mason jars for parties or tuck wedges into lunchboxes as a delightful surprise!
Make Ahead and Storage
Storing Leftovers
Wrap leftover Busy Day Chocolate Cake tightly in plastic wrap or store in an airtight container. It will stay moist and tender on the counter for up to three days, ensuring every last bite remains as good as the first.
Freezing
If you want to save a few slices (or the whole cake!) for later, let it cool completely, wrap tightly with plastic wrap and foil, and freeze for up to three months. The icing holds up beautifully—you’ll love how fresh it tastes when thawed.
Reheating
For that just-baked magic, pop an individual slice in the microwave for ten seconds, or bring the whole cake back to room temperature. The frosting will soften a bit, reinvigorating those irresistible fudgy notes.
FAQs
Can I make Busy Day Chocolate Cake without buttermilk?
Yes! Just add 1 tablespoon of white vinegar or lemon juice to a cup of regular milk and let it sit for 5 minutes. This quick swap will mimic the rich tang and moisture of buttermilk.
Is hot coffee a must in this recipe?
Absolutely, for maximum chocolate flavor! The coffee deepens the cocoa notes without making the cake taste like coffee. If you prefer, you can use hot water, but the flavor won’t be quite as bold.
Can I use a different size cake pan?
You sure can—two 9-inch round pans will work, though the bake time might vary slightly. Keep a close eye and start checking for doneness at 25–30 minutes.
What if I run out of cocoa powder?
If you’re in a pinch, you can try a mix of melted unsweetened chocolate (use 1 ounce for every 3 tablespoons of cocoa) and compensate for any extra liquid. However, for true Busy Day Chocolate Cake flavor, cocoa is best.
Can I make the icing in advance?
Yes! You can whip up the frosting a day ahead, store it covered at room temperature (if your kitchen is cool), and rewarm gently before spreading on the cake. Just don’t let it sit too long or harden in the pan.
Final Thoughts
Busy Day Chocolate Cake is the secret weapon every dessert lover needs—quick to make, always reliable, and guaranteed to disappear fast! Whether it’s a last-minute bake or a tried-and-true family favorite, give this recipe a go and share a slice with someone you love. Happy baking!
PrintBusy Day Chocolate Cake Recipe
Busy day chocolate cake is an old-fashioned dessert that is incredibly moist and tender. This baked-from-scratch cake is topped with a rich, homemade frosting.
- Prep Time: 10 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: 12
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
HOMEMADE CHOCOLATE CAKE INGREDIENTS
- 2 cups white sugar
- 2½ cups flour
- 4 tablespoons cocoa powder
- 1½ teaspoons baking soda
- 1½ teaspoons baking powder
- 1 teaspoon salt
- 2 eggs (room temperature)
- 1 cup buttermilk
- 2 teaspoons vanilla
- 1 cup hot coffee
- 1 cup vegetable oil
HOMEMADE CHOCOLATE ICING INGREDIENTS
- ½ cup butter (softened)
- ½ cup cocoa powder
- 3 cups powdered sugar
- 2 tablespoons coffee
- ½ tablespoon vanilla
Instructions
- Cake: Heat oven to 375°F. Grease and flour a 9×13-inch cake pan. Using a large bowl, combine the dry ingredients. Add eggs, buttermilk, vanilla, hot coffee, and vegetable oil. Beat until smooth. Pour batter into pans and bake for 30-40 minutes. Cool before icing.
- Icing: Melt butter in a saucepan. Whisk in cocoa powder. Cook until it begins to boil. Remove from heat and whisk in powdered sugar, vanilla, and coffee. Let cool slightly before icing the cake.
Notes
- Rubbing cocoa powder on the pan instead of flour keeps the chocolate flavor going.
- Oven temperatures vary, so keep a close eye on the cake while baking.
- Don’t let the icing cool too long, or it will harden and be difficult to spread.
Nutrition
- Serving Size: 1 slice
- Calories: 6784 kcal
- Sugar: 918 g
- Sodium: 5763 mg
- Fat: 159 g
- Saturated Fat: 84 g
- Unsaturated Fat: 62 g
- Trans Fat: 4 g
- Carbohydrates: 1267 g
- Fiber: 32 g
- Protein: 115 g
- Cholesterol: 2078 mg