Hershey Dark Chocolate Cake Recipe: Fudgy Layers and Rich Ganache Topping

This Hershey Dark Chocolate Cake recipe delivers layers of dense, fudgy chocolate perfection topped with a velvety ganache that rivals any bakery dessert. The secret lies in using high-quality dark chocolate and precise baking techniques to create a moist crumb without dryness.

I’ve perfected this recipe over years of testing, ensuring every slice delivers that signature Hershey’s flavor with a rich, satisfying texture.

The cake itself is a masterpiece of balance—fudgy yet tender, with a deep chocolate flavor that’s not overpowering. The ganache topping, made from the same dark chocolate, adds a glossy finish and extra decadence.

What makes this recipe stand out is the foolproof method that guarantees consistent results, whether you’re a seasoned baker or just starting out. No special equipment is needed, just patience and attention to detail.

By the time you pull this cake from the oven, you’ll have a golden-brown masterpiece with layers that are rich, moist, and packed with chocolate flavor. The ganache sets beautifully, creating a professional-looking finish that’s just as delicious as it is impressive.

This isn’t just a cake—it’s a showstopper that will have everyone asking for seconds.

Perfect for birthdays, holidays, or simply treating yourself, this recipe scales easily for any occasion. Pair it with a scoop of vanilla ice cream or fresh berries for the ultimate indulgence. Let’s get baking—your taste buds will thank you.

Ingredients for hershey dark chocolate cake

Six ounces of Hershey’s chocolate plus a few pantry staples—this is your secret to bakery-worthy cake.

The chocolate is non-negotiable here. Hershey’s Special Dark bars (the 10-ounce ones) are your best bet—they’re formulated for baking and deliver that signature Hershey’s flavor. Costco or Walmart usually stock them in bulk, but if you can’t find them, Ghirardelli 60% dark chocolate works as a substitute. Chop it yourself for even melting. The flour should be sifted—King Arthur or Gold Medal are my go-tos for reliable results. Butter matters too: use unsalted, cold, and cubed—never melted or salted. This keeps the cake tender without making it greasy.

No Hershey’s bars? Substitute with 6 ounces of high-quality dark chocolate (60-70% cocoa), chopped finely. Running low on powdered sugar? Process granulated sugar in a food processor for a quick fix. The ganache relies on heavy cream and powdered sugar, but if you’re out of powdered, sifted confectioners’ sugar works. For the cake batter, buttermilk can replace whole milk if you add 1 tsp lemon juice. And if you’re feeling fancy, swap the chocolate chips for white chocolate chunks—just know the flavor will shift slightly. The eggs? Room temperature is key—cold eggs can cause dense layers.

Store the cake in an airtight container at room temperature for up to 3 days, or refrigerate for up to 5 days if you’re prepping ahead. The ganache keeps beautifully too—3 days at room temp or 1 week refrigerated. For extra decadence, freeze the cake (without ganache) for up to 2 months. Thaw overnight in the fridge before adding the ganache. Pro tip: Wrap the cake tightly in plastic to prevent drying. And if you’re making this ahead for a party, assemble the cake the day before—it tastes even better after the flavors meld.

Step-by-step instructions for Hershey dark chocolate cake

Here's how to create layers of fudgy perfection with a velvety ganache finish.

Preheat your oven to 350°F and line two 9-inch round cake pans with parchment paper. Chop the 6 oz Hershey's Special Dark Chocolate Bars into small pieces and place them in a heatproof bowl. Microwave in 20-second bursts, stirring between each, until completely melted and smooth. The chocolate should reach 110°F—this ensures it's fully liquid but not overheated.

In a separate large bowl, whisk together the 2 cups granulated sugar, 1 cup whole milk, and 2 tsp vanilla extract until the sugar dissolves completely. Add the 4 whole large eggs one at a time, whisking vigorously after each addition. This step creates a stable base for your cake. Gently fold in the melted chocolate until fully incorporated, creating a rich, deep brown batter.

In a medium bowl, sift together the 2 cups all-purpose flour, 1 tbsp baking powder, and 0.5 tsp salt. This ensures a light, airy texture without lumps. Gradually add the dry mixture to the chocolate batter in three parts, folding gently with a spatula after each addition. Overmixing develops gluten, which can make your cake dense. Stop folding when just combined—you should still see small flour streaks.

Add the 1.5 cups unsalted butter and 0.25 cup vegetable oil to the batter and mix until fully incorporated. The butter should be melted but not greasy—this creates a moist, tender crumb. Fold in the 1 cup dark chocolate chips by hand, reserving a small handful for the ganache later. Pour the batter evenly into your prepared cake pans, smoothing the tops with a spatula.

Place the cake pans in the preheated oven and bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean. The edges should be set but the tops may still look slightly soft—this is normal. Rotate the pans halfway through baking for even heat distribution. Let the cakes cool in the pans for 10 minutes, then transfer to a wire rack to cool completely. This prevents cracking when you remove them from the pans.

While the cakes cool, prepare the ganache by combining the 1 cup heavy cream and 2 cups powdered sugar in a saucepan. Heat over medium-low heat until the sugar dissolves completely, then remove from heat and let steep for 5 minutes. Stir in the reserved handful of dark chocolate chips until fully melted and glossy. The ganache should be thick but pourable—if it's too stiff, warm it gently over low heat.

Once the cakes are completely cool, place one layer on a serving plate. Spread a thin layer of the ganache over the top, then place the second layer on top. This creates a sturdy base for the final frosting. Pour the remaining ganache over the top of the cake and use an offset spatula to spread it evenly, creating a smooth, glossy finish. The ganache should be thick enough to hold its shape but still spreadable.

Let the cake sit at room temperature for 1 hour before slicing. This allows the ganache to set slightly, making it easier to serve. Each slice should reveal a fudgy, moist crumb with pockets of melted chocolate and a glossy, velvety frosting. Serve with a dusting of powdered sugar or fresh berries for a stunning presentation.

Troubleshooting this recipe

Cake Too Dense

If your cake turns out dense instead of fudgy, you likely overmixed the batter or used too much flour. I’ve found that folding dry ingredients in three parts (instead of dumping all at once) prevents gluten development.

Also, ensure your butter is cold—melting it first can make the cake greasy. For extra moisture, add 1 tbsp sour cream to the batter. Overbaking is another culprit—pull the cake when a toothpick comes out with moist crumbs, not completely clean. 💡

Ganache Too Thin

A runny ganache usually means the chocolate wasn’t fully melted or the cream was too hot. To fix this, chill the ganache for 10 minutes in the fridge, then reheat gently in 10-second microwave bursts, stirring between each.

For a thicker consistency, add 1 tbsp powdered sugar at a time. If it’s still too thin, whisk in 1 tsp cornstarch to stabilize it. Always use room-temperature cream—cold cream won’t dissolve the sugar properly. ✨

Cracks in the Cake

Cracks often appear when the cake cools too quickly or the oven isn’t hot enough. Let the cakes cool in the pans for 15 minutes before transferring to a wire rack. Also, ensure your oven is fully preheated to 350°F—temperature fluctuations cause uneven baking.

If cracks form, brush them with simple syrup (equal parts sugar and water) and cover with ganache to disguise them. For extra insurance, tap the pans gently on the counter before baking to release air bubbles. 🌟

Ganache Not Setting

If your ganache stays too soft, it’s likely because the chocolate wasn’t cool enough before mixing. Let the ganache sit at room temperature for 30 minutes after assembly, then chill in the fridge for 15 minutes to firm up.

For a quicker fix, sprinkle powdered sugar on top and let it absorb moisture for 5 minutes. Avoid using low-fat cream—full-fat heavy cream is non-negotiable for a stable ganache. If all else fails, reheat the ganache gently and spread it again before it cools. 💪

Bitter Aftertaste

A bitter taste usually means the chocolate was overheated or the baking powder was old. Always melt chocolate in 20-second bursts and stop at 110°F. Test your baking powder by mixing 1 tbsp with water—it should bubble vigorously.

If your chocolate is too bitter, reduce the amount to 5 oz and add 1 oz unsweetened cocoa powder to balance the flavor. For a smoother taste, whisk the melted chocolate vigorously to aerate it slightly before folding into the batter. 🔥

Dry or Crumbly Texture

Dry cake often results from overbaking or using old ingredients. Check your oven’s accuracy with an oven thermometer—many run hot. If the cake is dry, brush the layers with 2 tbsp warm syrup (equal parts sugar and water) before adding ganache.

For extra moisture, replace ¼ cup of the milk with sour cream or Greek yogurt. Store-bought chocolate chips can also contribute—use high-quality chocolate bars chopped into small pieces for better flavor and texture. 💛

Frequently asked questions