Moist, rich, and undeniably chocolatey—this cake is the kind of dessert that makes hearts flutter. It’s a showstopper that perfectly balances fudginess and tenderness, making it an absolute favorite for any occasion, from casual gatherings to extraordinary celebrations. What truly sets this chocolate cake apart is its combination of ingredients like mayonnaise and hot coffee, which contribute to an incredibly moist texture that store-bought or restaurant versions can only dream of.

Table of Contents

Why You’ll Love This Recipe
Ingredients You’ll Need
How to Make Moist Chocolate Cake
Storing & Reheating
Chef’s Helpful Tips
Recipe FAQs
Moist Chocolate Cake

I still remember the first time I experimented with a moist chocolate cake. The kitchen filled with an intoxicating aroma, and as I pulled the cakes from the oven, their height and deep chocolate color hinted at something special. The first slice, revealing its tender, squishy crumb, was a moment of pure joy. Just one bite, and I knew this would be the chocolate cake recipe I’d cherish forever. Trust me, once you try this moist chocolate cake, you’ll want to keep it on regular rotation in your baking repertoire.

Why You’ll Love This Recipe

Simple & Quick: With just one bowl for mixing and minimal cleanup, this cake comes together effortlessly in about an hour.
Irresistible Flavor: Each bite offers a harmony of rich chocolate flavor, perfectly complemented by a creamy, luscious frosting.
Eye-Catching Appeal: Friends and family will marvel at the cake’s stunning layers and glossy frosting—perfect for any event!
Flexible Serving: Whether it’s a birthday, a cozy family dinner, or just a sweet snack with coffee, this cake is always a great choice.
Diet-Friendly Options: The recipe can be adjusted for gluten-free or dairy-free diets by opting for suitable substitutes.

Ingredients You’ll Need

1 3/4 cups (230g) all-purpose flour: This is your base, giving structure to the cake while keeping it delicate.
1/4 cup (30g) cornstarch: Added to enhance tenderness.
1 cup (100g) unsweetened cocoa powder: For that deep chocolate flavor—Dutch-process cocoa is great for an extra rich taste.
2 tsp baking soda: For lift and a light texture.
1 tsp baking powder: Works in conjunction with baking soda for optimal rise.
1/2 tsp kosher salt: Enhances the flavors in the cake.
1 cup (200g) granulated sugar: Sweetens the cake and balances the cocoa bitterness.
1 cup (205g) dark brown sugar, packed: Adds moisture and a hint of molasses flavor.
1/2 cup (108g) vegetable oil: Ensures the cake remains moist.
1 cup (230g) mayonnaise: This may sound bizarre, but it brings unmatchable moisture—don’t skip it!
3 large eggs + 1 egg yolk: Eggs provide structure and richness.
1/2 cup (128g) milk: Adds moisture and a slight richness; whole milk works best.
1 tbsp vinegar: This reacts with the baking soda to create lift while enhancing flavors.
2 tsp vanilla extract: For all-around sweetness and aroma.
1 cup (240g) hot coffee: Elevates the chocolate flavors—substituting with hot water and espresso powder works too!
2 cups (450g) unsalted butter, room temp: Used for making the decadent frosting.
1 1/2 cups (165g) powdered sugar: Sweetens and thickens the frosting.
3 tbsp corn syrup: Adds shine to the frosting and keeps it glossy.
1 tsp vanilla extract: For that sweet aromatic finish.
Pinch of kosher salt: Balances sweetness.
3/4 cup (177g) warm water: A base for your creamy frosting.
3/4 cup (75g) Dutch-process cocoa powder: A little extra richness for the frosting.
10 oz dark chocolate chips (one bag), melted and cooled slightly: For a luxuriously rich frosting.

How to Make Moist Chocolate Cake

Preheat the Oven: Preheat your oven to 350°F (175°C). Prepare three 8-inch cake pans; grease them and line the bottoms with parchment paper. If you have damp cake strips, wrap them around the pans to promote even baking.
Mix the Dry Ingredients: In a medium bowl, whisk together the 1 3/4 cups all-purpose flour, 1/4 cup cornstarch, 1 cup cocoa powder, 2 tsp baking soda, 1 tsp baking powder, and 1/2 tsp kosher salt. Set this mixture aside.
Combine Milk and Vinegar: In a measuring glass, stir together the 1/2 cup milk and 1 tbsp vinegar. Add in the 2 tsp vanilla extract and set aside to curdle slightly, which will mimic buttermilk and enhance moisture.
Whisk Together Wet Ingredients: In a large mixing bowl, combine the 1 cup granulated sugar, 1 cup dark brown sugar, 1/2 cup vegetable oil, and 1 cup mayonnaise until smooth. Then, incorporate the 3 large eggs and 1 egg yolk until well combined.
Add Milk Mixture: Stir in the milk mixture until fully merged into a velvety batter.
Fold in Dry Ingredients: Pour in half of the dry ingredients and whisk gently to combine, being careful not to overmix.
Incorporate Coffee: Gradually pour in the 1 cup hot coffee while stirring, mixing until smooth, then add the remaining dry ingredients. The batter will be thin, but that’s perfect—it will create a beautifully moist cake.
Distribute the Batter: Divide the batter evenly among the three prepared pans.
Bake the Cakes: Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out clean, with only a few moist crumbs attached.
Cool the Cakes: Let the cakes cool in the pans for about 10 minutes. Carefully run a knife around the edges, then turn them out onto a cooling rack to cool completely.
Make Frosting Immediately: While the cakes cool, prepare the frosting. In a large bowl using a mixer, beat the 2 cups room temperature unsalted butter until fluffy and smooth.
Add Powdered Ingredients: Gradually mix in the 1 1/2 cups powdered sugar, 3 tbsp corn syrup, 1 tsp vanilla extract, and a pinch of kosher salt.
Combine Cocoa: In a separate measuring glass, whisk together 3/4 cup warm water and 3/4 cup cocoa powder until combined. Pour this mixture into the frosting and blend until fully mixed, scraping the bowl as needed.
Incorporate Melted Chocolate: Gradually mix in the 10 oz melted dark chocolate chips until the frosting is smooth, glossy, and thick.
Chill the Frosting: If it’s too thin, chill in the refrigerator for about 45 minutes until it holds its shape.
Level Cakes: If necessary, level off the tops of the cooled cake layers to ensure even stacking.
Assemble the Cake: Place one cake layer on a turntable, spread a layer of frosting on top. Repeat with remaining layers.
Chill Assembled Cake: Once stacked, refrigerate the cake for about 20 minutes to firm up the layers.
Frost the Entire Cake: After chilling, cover the entire cake with remaining frosting, smoothing it out as desired.
Slice & Enjoy: Finally, slice into this heavenly cake and enjoy every richly moist bite!

Storing & Reheating

To store your moist chocolate cake, keep it at room temperature, covered loosely in plastic wrap or in an airtight container for up to three days. If you have leftovers, place them in the refrigerator for up to a week. For longer storage, wrap slices tightly in plastic and freeze for up to three months. When ready to indulge again, simply thaw in the fridge overnight and serve at room temperature for the best texture.

Chef’s Helpful Tips

Avoid overmixing the batter, as this can lead to a denser cake; mix just until combined.
Ensure your eggs and mayonnaise are at room temperature to incorporate more easily, enhancing the cake’s moistness.
If the frosting seems too thin, additional chilling time in the refrigerator will help it firm up.
For an added flavor boost, consider adding a splash more vanilla or a pinch of espresso powder to the batter for a deeper chocolate punch.
You can prepare the cake ahead of time; it actually tastes even better the next day as the flavors meld together!

Chocolate lovers, rejoice! This moist chocolate cake is not only a celebration in itself but also an experience to be savored and shared. Don’t be afraid to experiment with your frosting flavors or decorations. I can’t wait for you to try this deliciously inviting cake; each bite is a moment of bliss that deserves to be celebrated!

Recipe FAQs

Can I use cake flour instead of all-purpose flour?

Absolutely! Cake flour will yield an incredibly tender cake. Just remember to reduce the amount slightly, typically use about 1 1/2 cups of cake flour for this recipe in place of all-purpose flour.

Why is mayonnaise used in this recipe?

Using mayonnaise enhances the moistness of the cake while also adding a subtle richness. The emulsion of oils and eggs in mayonnaise creates a beautifully soft texture that’s hard to beat!

Can I make this cake ahead of time?

Indeed! You can bake the cakes a day ahead and store them tightly wrapped at room temperature. Frost the cake shortly before serving for the best texture and flavor.

How do I store leftover chocolate cake?

To keep the chocolate cake fresh, store it in an airtight container at room temperature for up to three days. Alternatively, refrigerate it for up to a week or freeze for up to three months!

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Moist Chocolate Cake

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Author: Peter
Prep Time: 60 minutes
Cook Time: 30-35 minutes
Total Time: 0 hours
Yield: 10 servings 1x
Category: Cakes
Method: Baking
Cuisine: American

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Description

This moist chocolate cake features a rich flavor complemented by the creaminess of mayonnaise. It’s perfect for special occasions or a simple family dessert, providing a delightful experience with every bite.

Ingredients

Scale

1 3/4 cups (230g) all purpose flour
1/4 cup (30g) cornstarch
1 cup (100g) unsweetened cocoa powder
2 tsp baking soda
1 tsp baking powder
1/2 tsp kosher salt
1 cup (200g) granulated sugar
1 cup (205g) dark brown sugar, packed
1/2 cup (108g) vegetable oil
1 cup (230g) mayonnaise
3 large eggs
1 egg yolk
1/2 cup (128g) milk
1 tbsp vinegar
2 tsp vanilla extract
1 cup (240g) hot coffee
2 cups (450g) unsalted butter, room temp
1 1/2 cups (165g) powdered sugar
3 tbsp corn syrup
1 tsp vanilla extract
Pinch of kosher salt
3/4 cup (177g) warm water
3/4 cup (75g) dutch process cocoa powder
10 oz dark chocolate chips, melted and cooled slightly

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Instructions

Preheat the oven to 350F and prepare 3 8" cake pans. Grease the pans and line the bottoms with parchment paper. Use damp cake strips if available.
In a medium bowl, whisk the flour, cornstarch, cocoa powder, baking soda, baking powder, and salt. Set aside.
Combine the milk, vinegar, and vanilla in a measuring glass, stirring to mix. Set aside.
In a large bowl, whisk together the granulated sugar, dark brown sugar, oil, and mayonnaise. Add the eggs and egg yolk, mixing well.
Stir in the milk mixture until combined.
Gradually add half of the dry ingredients and mix well. Then, pour in the hot coffee, mixing until combined, followed by the remaining dry ingredients. The batter will be thin.
Evenly distribute the batter across the three prepared pans.
Bake for 30-35 minutes or until a toothpick inserted into the center comes out clean with a few moist crumbs.
Allow the cakes to cool in the pans for about 10 minutes. Run a knife around the edges and invert onto a cooling rack. Let cool completely before frosting.

Notes

Ensure all ingredients, especially eggs and butter, are at room temperature before starting to achieve the best texture.
The cake layers can be made a day in advance and stored in the refrigerator to enhance flavors before serving.
For added richness, consider using high-quality cocoa powder and chocolate chips.