If you’re looking for a dessert that hits just the right balance between rich chocolate flavor and satisfying moistness, this Simple Moist Chocolate Walnut Cake Recipe is going to be your new best friend. Imagine a tender, luscious cake packed with deep cocoa goodness and the gentle crunch of walnuts throughout. It’s incredibly straightforward to make but delivers a bakery-level experience right from your own kitchen. Whether it’s a family gathering or a quiet night in, this cake promises to bring warmth and comfort with every bite.

Ingredients You’ll Need
The beauty of this cake lies in how approachable the ingredients are. Each one plays a crucial role, from creating that perfect moist crumb to layering in the intense chocolate taste and a subtle nuttiness that makes every forkful an absolute joy.
- 1 1/2 cups all-purpose flour: The foundation of the cake’s structure, providing just the right lightness.
- 1 cup granulated sugar: Adds essential sweetness and helps with the smooth texture.
- 1/2 cup unsweetened cocoa powder: Packs in the rich chocolate flavor crucial for this cake’s signature taste.
- 1 teaspoon baking powder: Helps the cake rise and stay fluffy throughout baking.
- 1/2 teaspoon baking soda: Works with the acidity in buttermilk to create that tender crumb.
- 1/4 teaspoon salt: Balances the sweetness and intensifies the chocolate notes.
- 1/2 cup vegetable oil: Keeps the cake incredibly moist without overpowering the flavor.
- 2 large eggs: Bind everything together and add richness.
- 1 teaspoon vanilla extract: Adds subtle warmth and depth to the overall flavor.
- 1 cup buttermilk: Contributes moisture and aids in developing a tender bite.
- 1/2 cup hot water: Thin the batter perfectly and help dissolve the cocoa for an intense chocolate color.
- 1/2 cup chopped walnuts (optional): Introduce a delightful crunch and a nutty contrast to all that softness.
How to Make Simple Moist Chocolate Walnut Cake Recipe
Step 1: Preheat and Prepare Your Pan
Start by heating your oven to 350°F (175°C). Grease and lightly flour an 8-inch round cake pan to ensure your cake bakes evenly and comes out smoothly when it’s ready. This little prep will save you from any sticky situations later.
Step 2: Mix the Dry Ingredients
In a large bowl, whisk together the flour, sugar, cocoa powder, baking powder, baking soda, and salt. This step is essential because it evenly distributes the leavening agents and cocoa, giving you a consistently flavored cake without lumps or pockets of dry ingredients.
Step 3: Combine the Wet Ingredients
Next, add the vegetable oil, eggs, and vanilla extract to the dry mixture. Mix everything until it’s well combined. This blend brings richness and body to the cake batter, setting the stage for incredible softness.
Step 4: Add the Buttermilk
Slowly pour in the buttermilk while stirring gently. The acidity of the buttermilk not only enhances flavor but also tenderizes the cake crumb, making it the moist marvel this recipe promises.
Step 5: Stir in Hot Water
Now, carefully fold in the hot water. Your batter will thin out significantly, but that’s exactly what you want. The heat helps bloom the cocoa powder’s flavor, ensuring your chocolate cake is deeply rich and visually striking.
Step 6: Fold in the Walnuts
If you’re a fan of a little crunch and texture contrast, fold in the chopped walnuts evenly. They add a beautiful rustic touch and complement the chocolate perfectly. Of course, you can skip this step if nuts aren’t your thing.
Step 7: Bake Until Perfect
Pour the luscious batter into your prepared pan and slide it into the oven. Bake for 30 to 35 minutes until a toothpick inserted into the center comes out clean. The smell wafting from the oven alone will have you counting down the minutes.
Step 8: Cool Before Serving
Allow the cake to cool in the pan for about 10 minutes, then transfer it to a wire rack to cool completely. This prevents the cake from becoming soggy and helps it set for that perfect slice every time.
How to Serve Simple Moist Chocolate Walnut Cake Recipe

Garnishes
A dusting of powdered sugar is a charming and simple touch, but if you want to elevate the presentation, fresh berries or a drizzle of chocolate ganache sends this cake to the next level. Whipped cream or cream cheese frosting are also incredible partners to the moist texture and cocoa richness.
Side Dishes
This cake pairs wonderfully with a cold glass of milk, a scoop of vanilla ice cream, or even a lightly brewed cup of coffee or tea. These classic companions balance the dense, chocolaty flavors and make each bite feel indulgent yet comforting.
Creative Ways to Present
Want to impress with minimal effort? Serve individual slices on pretty plates with a walnut or two on top for garnish. You could even turn it into a dessert parfait by layering chunks of cake with whipped cream and chopped walnuts inside glasses—instantly charming and fun!
Make Ahead and Storage
Storing Leftovers
Keep your cake in an airtight container at room temperature for up to 3 days. This keeps it moist and fresh while preventing it from drying out. If your kitchen is warm, consider refrigerating but make sure to bring it to room temperature before serving to unlock full flavor.
Freezing
This Simple Moist Chocolate Walnut Cake Recipe freezes beautifully. Wrap the cooled cake tightly in plastic wrap and then foil to protect from freezer burn. It can last for up to 3 months frozen. When you’re ready, thaw it overnight in the fridge or for a few hours at room temperature.
Reheating
If you want to enjoy leftover cake warm, simply microwave a slice for about 15-20 seconds or warm it in a low oven (around 300°F) for 10 minutes. This quick heat brings back the cake’s comforting softness and releases that lovely chocolate aroma all over again.
FAQs
Can I substitute buttermilk in this recipe?
Absolutely! If you don’t have buttermilk on hand, you can make a simple substitute by adding one tablespoon of lemon juice or white vinegar to one cup of milk. Let it sit for about 5 minutes before using.
Are walnuts necessary in the cake?
Not at all. The walnuts add a lovely texture and nutty flavor, but this recipe works just as well without them. You can easily omit or replace them with other nuts or even chocolate chips.
How do I know when the cake is perfectly baked?
Use a toothpick or cake tester inserted into the center of the cake. When it comes out clean or with a few moist crumbs (but no wet batter), your cake is ready to come out of the oven.
Can I make this cake gluten-free?
You can try substituting the all-purpose flour with a gluten-free flour blend, but keep in mind the texture may vary slightly. Look for blends that include xanthan gum for best results.
What frosting pairs best with this cake?
Classic choices like cream cheese frosting, chocolate ganache, or even a simple whipped cream topping complement this moist chocolate walnut cake beautifully. Choose based on the occasion and your personal taste!
Final Thoughts
This Simple Moist Chocolate Walnut Cake Recipe is one of those rare crowd-pleasers that’s both effortless and incredibly satisfying. It feels like a warm hug in cake form, with a texture so tender and chocolate flavor so rich, you’ll find yourself craving slice after slice. I truly can’t wait for you to try it and make it a cherished favorite in your kitchen too!
Print
Simple Moist Chocolate Walnut Cake Recipe
- Prep Time: 15 minutes
- Cook Time: 30-35 minutes
- Total Time: 45-50 minutes
- Yield: 8 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
This Simple Moist Chocolate Walnut Cake is a rich, tender dessert perfect for any occasion. Made with cocoa powder, buttermilk, and chopped walnuts, it delivers a perfect balance of chocolate flavor and moist texture. Easy to prepare and bake, this cake is ideal for both novice and experienced bakers looking for a delicious homemade treat.
Ingredients
Dry Ingredients
- 1 1/2 cups all-purpose flour
- 1 cup granulated sugar
- 1/2 cup unsweetened cocoa powder
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
Wet Ingredients
- 1/2 cup vegetable oil
- 2 large eggs
- 1 teaspoon vanilla extract
- 1 cup buttermilk
- 1/2 cup hot water
Add-ins
- 1/2 cup chopped walnuts (optional)
Instructions
- Preheat Oven and Prepare Pan: Preheat your oven to 350°F (175°C). Grease and flour an 8-inch round cake pan to prevent sticking and ensure easy removal after baking.
- Mix Dry Ingredients: In a large bowl, whisk together the all-purpose flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt until evenly combined.
- Add Wet Ingredients: Add the vegetable oil, eggs, and vanilla extract to the dry mixture. Mix thoroughly until well combined and the batter starts to come together.
- Incorporate Buttermilk: Gradually pour in the buttermilk, stirring continuously until the batter is smooth and fully blended.
- Add Hot Water: Stir in the hot water carefully, thinning the batter to a smooth, pourable consistency, which helps create a moist cake texture.
- Fold in Walnuts: If using, gently fold the chopped walnuts into the batter ensuring they are evenly distributed.
- Pour Batter into Pan: Transfer the batter into the prepared cake pan, smoothing the surface with a spatula.
- Bake: Place the pan in the oven and bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean, indicating the cake is fully cooked.
- Cool the Cake: Let the cake cool in the pan for about 10 minutes to set. Then transfer it onto a wire rack to cool completely.
- Serve: Enjoy the cake as is, dust it with powdered sugar for a simple finish, or add your choice of frosting for extra sweetness.
Notes
- Make sure the hot water is just off the boil to help the cocoa powder bloom and intensify the chocolate flavor.
- You can substitute buttermilk with a mix of milk and 1 tablespoon of vinegar or lemon juice, let it sit for 5 minutes before use.
- For a nut-free version, simply omit the walnuts or replace with chocolate chips.
- Ensure not to over-mix the batter after adding flour to avoid a dense cake.
- Store the cake in an airtight container at room temperature for up to 3 days or refrigerate for longer freshness.

