Buzzfeed Chocolate Cake Recipe: Moist Layers and Mirror-Gloss Frosting

This BuzzFeed chocolate cake recipe delivers the perfect balance of rich, moist layers and that signature mirror-gloss frosting everyone loves. 💛 The secret lies in a simple yet foolproof method that ensures tender crumb and ultra-smooth frosting every time.

I've tested countless variations to perfect this recipe—no fancy equipment or complicated techniques required. What sets this cake apart is its versatility. You can bake it in a single 9-inch pan for a decadent slice or double the recipe for a showstopping dessert.

The frosting, made with just a few ingredients, achieves that iconic glossy finish without being overly sweet. It's the kind of cake that disappears quickly but leaves everyone asking for seconds. The result is layers that stay moist for days, with a texture so tender it melts in your mouth.

The frosting isn't just for looks—it adds a velvety contrast to the dense chocolate cake. This is the recipe that's been shared millions of times for a reason: it's easy, impressive, and always delivers. Perfect for birthdays, date nights, or just because, this cake is designed to impress without stress.

Let's get baking!

Ingredients for buzzfeed chocolate cake

These 14 ingredients create the perfect chocolate cake with glossy frosting everyone craves.

The cocoa powder makes all the difference—Ghirardelli or Hershey's Special Dark are my go-tos, but any natural cocoa works. For the butter, Land O'Lakes or Plugrá melt beautifully, but don't use margarine (trust me on this). Eggs should be room temperature—cold eggs make the cake dense. If you're short on buttermilk, mix 1 tbsp vinegar with ¾ cup milk and let sit for 5 minutes. The powdered sugar for frosting? Domino brand is my secret—it's ultra-fine and dissolves perfectly.

No buttermilk? Plain yogurt or sour cream works in a pinch. Running out of vanilla extract? Almond extract at half the amount adds depth. The frosting gets its gloss from the milk—just a splash makes it shine like the BuzzFeed original. For a richer frosting, add 1 tbsp melted butter. If your frosting is too thick, microwave for 10 seconds to loosen it up. The cake layers should be cool before frosting, or the buttercream will melt (which defeats the whole point of that mirror-gloss finish).

The cake keeps beautifully for 3 days at room temperature, covered loosely. For longer storage, wrap tightly in plastic and refrigerate for up to 1 week. The frosting? It's best made fresh but can be refrigerated for 2 days if covered. To avoid soggy bottoms, I always bake the layers just until a toothpick comes out with moist crumbs—not wet batter. Double the recipe? Use two 9-inch pans or one 10-inch pan for a crowd-pleaser.

Step-by-step instructions for Buzzfeed chocolate cake recipe

Here's how to bake that perfect, fudgy chocolate cake with glossy frosting!

Start by preheating your oven to 350°F. Sift together the 1.5 cups all-purpose flour, 0.75 cup unsweetened cocoa powder, 1 tsp baking soda, and 0.5 tsp salt in a medium bowl. I like to use a fine-mesh sieve for this—it keeps the cocoa powder from clumping and ensures a light, airy texture.

In a separate small bowl, whisk together the 2 cups granulated sugar and 0.5 cup light brown sugar. This pre-mixing prevents sugar streaks in the final batter. Keep these dry ingredients ready—they'll be your first addition to the wet ingredients.

In a large mixing bowl, melt the 1 cup unsalted butter in the microwave in 30-second intervals, stirring between each, until completely smooth. Let it cool slightly for 2 minutes—it should be warm to the touch but not hot.

Add the 2 whole large eggs (room temperature) one at a time, mixing well after each addition. Then stir in the 2 tsp vanilla extract and the 0.75 cup buttermilk. Here's the thing—adding the buttermilk last helps maintain that signature moist texture. Pour in the 0.5 cup hot water and mix until just combined.

Gradually add the dry ingredients to the wet mixture, mixing on low speed with an electric mixer (or by hand with a spatula) until just combined. Don't overmix—you should still see some flour streaks. The batter will be thick and fudgy.

Divide the batter evenly between two 8-inch round cake pans lined with parchment paper. Tap the pans gently on the counter to release any air bubbles. Bake for 30-35 minutes until a toothpick inserted in the center comes out with moist crumbs (not wet batter). The edges should be set but the tops still slightly shiny.

Let the cakes cool in their pans for 10 minutes, then transfer to a wire rack to cool completely. While they cool, whip the 1 cup heavy whipping cream in a chilled bowl until soft peaks form. Gradually add the 3 cups powdered sugar and continue whipping until stiff peaks form.

For that signature glossy finish, add the 1 tbsp milk and mix until smooth. This step is crucial—it gives you that professional mirror-gloss look. Once the cakes are completely cool, spread the frosting between the layers and on top, then let it set for 30 minutes before slicing.

Storing and reheating this recipe

Room Temperature Storage

This cake stays moist and delicious at room temperature for up to 3 days when stored in an airtight container. I use a clear plastic container with a tight seal—it keeps the cake fresh while letting me admire those perfect layers.

Place it on a wire rack inside the container to prevent sogginess from condensation. 💛

Fridge for Extended Freshness

For longer storage, refrigerate the cake for up to 1 week in the same airtight container. The cold temperature actually helps preserve the moisture, so each slice will taste just as rich as the first.

Let it sit at room temperature for 10-15 minutes before serving to bring back that perfect texture.

Freezing for Future Treats

Freeze individual layers (unfrosted) between parchment paper for up to 3 months. Thaw overnight in the fridge, then frost and serve. The frosting? Freeze it separately in a ziplock bag for up to 2 months.

Thaw in the fridge and whip again briefly to restore its glossy texture before using.

Reviving Stale Cake

If your cake loses moisture after storage, don't toss it! Brush warm slices with a little simple syrup (equal parts sugar and water, heated until dissolved) and let sit for 5 minutes.

The syrup will revive the texture instantly. For extra richness, add a thin layer of warmed chocolate ganache between slices before serving.

Frosting Refresh Tips

The mirror-gloss frosting can be tricky after refrigeration. If it looks separated, simply whip it again with a hand mixer for 1-2 minutes until smooth. For extra shine, add ½ tsp clear vanilla extract or a splash of milk while whipping.

If the frosting hardens, microwave it for 10-15 seconds to soften before re-whipping.

Portioning for Sharing

Slice the cake into 12 equal portions for perfect sharing. Store individual slices in small airtight containers or wrap tightly in plastic wrap. This prevents the frosting from drying out and keeps each slice looking as good as the first.

Label with the date—you'll be surprised how quickly these disappear! ✨

Frequently asked questions