Moist Chocolate Cake with Chocolate Fudge Frosting

This Moist Chocolate Cake with Chocolate Fudge Frosting is rich, deeply chocolatey, and incredibly tender with a soft crumb that stays moist for days. Two layers of homemade chocolate cake are covered with a thick, silky fudge frosting for the ultimate dessert for birthdays, holidays, celebrations, or whenever a serious chocolate craving hits.

The cake uses simple pantry ingredients and hot coffee to intensify the cocoa flavor without making the finished cake taste like coffee. Paired with creamy chocolate fudge frosting, every slice is rich, decadent, and perfect with a cold glass of milk or a scoop of vanilla ice cream.

Recipe Details

Prep Time: 25 minutes
Bake Time: 30–35 minutes
Cooling & Frosting Time: 1 hour
Total Time: About 2 hours
Servings: 12
Course: Dessert
Cuisine: American
Method: Baking

Ingredients

For the Chocolate Cake

• 1 3/4 cups all-purpose flour
• 2 cups granulated sugar
• 3/4 cup unsweetened cocoa powder
• 2 teaspoons baking soda
• 1 teaspoon baking powder
• 1 teaspoon kosher salt
• 2 large eggs, room temperature
• 1 cup buttermilk, room temperature
• 1/2 cup vegetable oil
• 2 teaspoons pure vanilla extract
• 1 cup hot freshly brewed coffee

For the Chocolate Fudge Frosting

• 1 cup unsalted butter, softened
• 3 1/2 cups powdered sugar
• 3/4 cup unsweetened cocoa powder
• 1/2 teaspoon kosher salt
• 2 teaspoons pure vanilla extract
• 1/2 cup heavy cream, plus more as needed
• 4 ounces semisweet chocolate, melted and slightly cooled

Instructions

1. Prepare the Cake Pans

Preheat the oven to 350°F.

Grease two 9-inch round cake pans. Line the bottoms with parchment paper, then lightly grease the parchment.

For extra insurance against sticking, dust the pans lightly with cocoa powder instead of flour.

2. Combine the Dry Ingredients

In a large mixing bowl, whisk together the flour, granulated sugar, cocoa powder, baking soda, baking powder, and salt.

Whisk until evenly combined and no large cocoa lumps remain.

3. Add the Wet Ingredients

Add the eggs, buttermilk, vegetable oil, and vanilla extract to the dry ingredients.

Using an electric mixer on medium speed, beat for approximately 2 minutes until everything is well combined.

Scrape down the sides and bottom of the bowl as necessary.

4. Add the Hot Coffee

With the mixer on low speed, slowly pour in the hot coffee.

Mix just until completely incorporated.

Don’t worry if the batter looks much thinner than traditional cake batter. That’s expected and helps produce an exceptionally moist chocolate cake.

5. Fill the Cake Pans

Divide the batter evenly between the two prepared 9-inch cake pans.

For evenly sized layers, use a kitchen scale to divide the batter by weight.

Gently tap each pan on the counter a couple of times to release large air bubbles.

6. Bake

Bake at 350°F for 30–35 minutes, or until a toothpick inserted near the center comes out clean or with a few moist crumbs.

Avoid overbaking, which is one of the most common reasons chocolate cake becomes dry.

7. Cool Completely

Place the cake pans on wire racks and allow the cakes to cool in their pans for approximately 10–15 minutes.

Carefully run a thin knife around the edges and turn the cakes out onto the racks.

Remove the parchment paper and allow the layers to cool completely before frosting.

Never frost warm cake—the heat can melt the frosting and cause the layers to slide.

How to Make Chocolate Fudge Frosting

1. Melt the Chocolate

Place the semisweet chocolate in a microwave-safe bowl.

Microwave in 20-second intervals, stirring thoroughly after each interval, until smooth.

Set aside and allow it to cool slightly. It should remain fluid but shouldn’t be hot when added to the frosting.

2. Beat the Butter

Place the softened butter in a large mixing bowl.

Using an electric mixer, beat on medium-high speed for approximately 2–3 minutes until smooth and creamy.

3. Add the Cocoa and Sugar

Sift the powdered sugar and cocoa powder if they contain lumps.

With the mixer on low speed, gradually add the powdered sugar, cocoa powder, and salt to the butter.

Mix slowly at first to prevent the dry ingredients from flying out of the bowl.

4. Add the Cream and Vanilla

Add the vanilla and approximately 1/4 cup of the heavy cream.

Beat until combined.

5. Add the Melted Chocolate

Pour in the slightly cooled melted chocolate.

Beat on medium speed until the frosting is smooth, rich, and evenly chocolatey.

Gradually add the remaining heavy cream until the frosting reaches a thick but easily spreadable consistency.

Beat for another 1–2 minutes until creamy.

Assemble the Chocolate Cake

Place one completely cooled cake layer on a cake stand or serving plate.

Spread approximately 1 cup of chocolate fudge frosting evenly over the top.

Place the second cake layer on top.

Spread a thin layer of frosting over the top and sides to create a crumb coat. Refrigerate the cake for approximately 15–20 minutes if you’d like a cleaner finish.

Spread the remaining chocolate fudge frosting generously over the top and sides of the cake.

Create swirls with an offset spatula or smooth the frosting for a more polished appearance.

Slice and serve.

Tips for the Moistest Chocolate Cake

Measure the flour correctly. Spoon flour into the measuring cup and level it with a knife instead of packing it into the cup. Too much flour can produce a dry, dense cake.

Don’t skip the buttermilk. Buttermilk adds moisture and helps create a tender crumb.

Use oil instead of only butter. Vegetable oil stays liquid at room temperature and helps keep chocolate cake soft and moist.

Use hot coffee. Coffee enhances chocolate flavor and helps bring out the richness of cocoa powder. The finished cake shouldn’t have a strong coffee flavor.

Don’t overmix. Once the batter is combined, avoid excessive mixing.

Don’t overbake. Start checking the cakes around the 30-minute mark.

Cool before frosting. Completely cooled layers are much easier to frost and won’t melt the chocolate fudge frosting.

Can I Make Chocolate Cake Without Coffee?

Yes. Replace the hot coffee with 1 cup of hot water.

The cake will still be moist and chocolatey, although coffee helps deepen the chocolate flavor.

You can also dissolve 1 teaspoon of instant espresso powder in the hot water for a stronger chocolate flavor without brewing coffee.

Easy Chocolate Cake Variations

Chocolate Raspberry Cake

Spread a thin layer of raspberry preserves between the cake and fudge frosting for a chocolate-and-berry combination.

Chocolate Strawberry Cake

Add sliced fresh strawberries between the layers or decorate the finished cake with strawberries.

Chocolate Peanut Butter Cake

Add a layer of creamy peanut butter frosting between the chocolate cake layers and use chocolate fudge frosting on the outside.

Chocolate Birthday Cake

Decorate the finished cake with colorful sprinkles, chocolate curls, or your favorite birthday decorations.

Chocolate Cupcakes

Divide the batter among lined cupcake pans, filling each liner about two-thirds full. Bake at 350°F for approximately 18–22 minutes, checking for doneness before removing them from the oven.

Decorating Ideas

Keep the cake simple with dramatic swirls of fudge frosting, or dress it up with:

• Chocolate curls
• Mini chocolate chips
• Chocolate sprinkles
• Fresh strawberries
• Fresh raspberries
• Chocolate-covered strawberries
• Chopped toasted nuts
• Chocolate ganache drizzle
• Colorful birthday sprinkles
• A light dusting of cocoa powder

How to Make the Cake Ahead

The chocolate cake layers can be baked ahead of time.

Once completely cool, wrap each unfrosted layer tightly in plastic wrap and store at room temperature for about 1 day or refrigerate for up to 2 days.

For longer storage, freeze the well-wrapped cake layers and thaw them before assembling.

The frosting can also be prepared ahead and refrigerated in an airtight container. Allow it to soften at room temperature, then beat briefly before frosting the cake.

Storage

Store the frosted chocolate cake covered at room temperature for up to 2 days if your kitchen is reasonably cool.

For longer storage, refrigerate the cake in an airtight cake container for up to 5 days.

For the best flavor and texture, allow refrigerated cake slices to sit at room temperature for approximately 20–30 minutes before serving.

Can You Freeze Chocolate Cake?

Yes.

For unfrosted cake layers, allow them to cool completely, then wrap them tightly in plastic wrap followed by aluminum foil. Freeze for up to 3 months.

You can also freeze individual slices of frosted cake in airtight freezer-safe containers.

Thaw overnight in the refrigerator, then bring closer to room temperature before serving.

Frequently Asked Questions

What makes this chocolate cake moist?

The combination of buttermilk, vegetable oil, eggs, and hot coffee provides plenty of moisture. Properly measuring the flour and avoiding overbaking are equally important.

Why add coffee to chocolate cake?

Coffee intensifies cocoa’s chocolate flavor. It doesn’t necessarily make the cake taste like coffee, especially when paired with a rich chocolate frosting.

What cocoa powder should I use?

Regular unsweetened natural cocoa powder works well with the leavening in this recipe. For consistent results, use the type specified rather than automatically substituting Dutch-process cocoa.

Why is my chocolate cake dry?

Common causes include adding too much flour, baking for too long, or using an oven that runs hotter than its displayed temperature.

Can I make this cake in a 9×13-inch pan?

Yes. Pour the batter into a greased and lined 9×13-inch baking pan and bake at 350°F. Begin checking around 30–35 minutes and continue baking only until a toothpick comes out clean or with a few moist crumbs.

Can I make the frosting without melted chocolate?

Yes. You can leave out the melted semisweet chocolate for a simpler cocoa frosting. However, the melted chocolate gives this frosting its extra-rich, fudge-like flavor and texture.

How do I prevent my cake from sticking?

Grease the pans, line the bottoms with parchment paper, and lightly grease the parchment. This makes removing delicate chocolate cake layers much easier.

Nutrition Information

Approximate nutrition per serving, based on 12 servings:

• Calories: 690
• Protein: 7g
• Carbohydrates: 96g
• Fat: 34g
• Fiber: 5g
• Sugar: 72g
• Sodium: 580mg

Nutrition information is an estimate and will vary depending on the specific ingredients, brands, frosting amount, and serving sizes used.

Final Thoughts

This Moist Chocolate Cake with Chocolate Fudge Frosting is everything a homemade chocolate cake should be: soft, tender, deeply chocolatey, and generously covered in rich, creamy frosting.

Whether you’re baking for a birthday, holiday, dinner party, or simply because you’re craving chocolate, this classic layer cake makes an impressive centerpiece without requiring complicated techniques. Serve it as-is or add berries, chocolate curls, or sprinkles to make it perfect for any occasion.