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If you have a soft spot for coffee-flavored desserts and a love for nuts, then you absolutely must try this Vegan Coffee Walnut Cake Recipe. It’s a beautifully moist, tender cake infused with rich espresso and studded with crunchy walnuts, then layered with a creamy vegan coffee buttercream that brings everything together in a symphony of flavors and textures. Whether you’re vegan or simply looking for a delicious new cake to wow your friends and family, this cake offers an irresistible, cozy slice of heaven in every bite.
Ingredients You’ll Need
The ingredients for this vegan coffee walnut cake are delightfully straightforward but incredibly important. Each one plays a key role in creating that perfect balance of flavor, texture, and moisture that makes this cake so special.
- 100 g walnuts (finely chopped): Adds a lovely nutty crunch and depth of flavor throughout the cake.
- 260 g all-purpose flour (sifted): The essential base for the cake’s structure, ensuring it rises just right.
- 220 g soft brown sugar: Brings a subtle caramel sweetness with molasses undertones for warmth.
- 2 ½ teaspoons baking powder: Helps the cake rise beautifully and become light and fluffy.
- ½ teaspoon baking soda: Works with the baking powder to give an even, tender crumb.
- ¼ teaspoon sea salt: Balances the sweetness and enhances the coffee and walnut flavors.
- 120 ml espresso (or strong coffee, cooled): Infuses the entire cake with rich coffee aroma and flavor.
- 1 batch (240 ml) vegan buttermilk: Moisturizes the cake while adding a slight tang for complexity.
- 120 ml olive oil (or neutral oil): Keeps the cake tender and moist without overpowering flavor.
- 1 tablespoon vanilla extract: Adds a sweet floral note that complements both coffee and walnuts beautifully.
- 150 g walnuts (finely chopped): More nuts to scatter through the batter and topping for extra crunch.
- 400 g all-purpose flour (sifted): Additional flour to balance the cake’s texture in the full recipe.
- 330 g soft brown sugar: Elevates the sweetness for a perfectly rich flavor profile.
- 3 ¾ teaspoons baking powder: Ensures a fluffy and well-risen cake.
- ¾ teaspoon baking soda: Aids in tenderness and rise alongside baking powder.
- ½ teaspoon sea salt: Enhances every flavor note, especially the coffee.
- 180 ml espresso (or strong coffee, cooled): More coffee to saturate the cake with its deep, robust flavor.
- 1 ½ batches (360 ml) vegan buttermilk: Keeps the batter moist and adds a subtle tang.
- 180 ml olive oil (or neutral oil): Maintains moistness and silky crumb.
- 1 ½ tablespoons vanilla extract: Rounds out the cake’s taste with a beautiful vanilla warmth.
- 200 g walnut halves (for candied walnuts): For creating that irresistible crunchy topping with a caramelized finish.
- 2 tablespoons soft brown sugar or granulated sugar (for candied walnuts): Sweetens and caramelizes the walnuts perfectly.
- 1 tablespoon vegan butter (or olive oil, for candied walnuts): Adds richness and helps the sugar melt evenly on the walnuts.
- 1 batch vegan coffee buttercream: The creamy, coffee-infused frosting that brings this cake to life.
How to Make Vegan Coffee Walnut Cake Recipe
Step 1: Prepare Your Ingredients and Pans
Start by preheating your oven to 160°C fan (or 180°C conventional) and prepping two cake tins by lining them with parchment circles and greasing the sides. Weigh your ingredients carefully with a kitchen scale for accuracy—this little step ensures your cake bakes perfectly every time.
Step 2: Whisk Together Dry Ingredients
In a large bowl, combine the finely chopped walnuts, sifted flour, soft brown sugar, baking powder, baking soda, and sea salt. Whisking them together ensures everything is evenly distributed, which is key for consistent texture and rise.
Step 3: Mix the Wet Ingredients
In a separate bowl, whisk together the cooled espresso, vegan buttermilk, olive oil, and vanilla extract until smooth and well combined. This mixture will bring moistness and rich coffee flavor throughout the cake.
Step 4: Combine Wet and Dry
Pour the wet ingredients into the bowl with the dry ingredients and whisk gently until no pockets of flour remain. Be careful not to over-mix since that can make the cake tough. You want a smooth batter with just a few lumps.
Step 5: Bake the Cake Layers
Divide the batter evenly between the two prepared tins and bake for 35-45 minutes. Your cake is done when a toothpick inserted in the center comes out clean. This part is always exciting—soon you’ll have that irresistible aroma filling your kitchen!
Step 6: Cool and Prepare the Candied Walnuts
Let the cakes cool in their pans for about 10-15 minutes, then transfer them to a wire rack to cool completely. Meanwhile, gently caramelize walnut halves in a pan with sugar and vegan butter or oil, tossing constantly, until golden and fragrant. Set aside some halves for topping and finely chop the rest for the filling and decoration.
Step 7: Assemble with Vegan Coffee Buttercream
Using an offset spatula, spread one-third of the coffee buttercream on the first cake layer, sprinkle half the chopped candied walnuts over it, then place the second layer on top. Coat the sides and top with another third of the frosting. Finally, pipe the remaining buttercream on top in pretty swirls and decorate with walnut halves and the remaining chopped walnuts for an elegant finish.
How to Serve Vegan Coffee Walnut Cake Recipe
Garnishes
A few candied walnut halves and a light dusting of cocoa powder or a sprinkle of finely ground coffee on top adds a professional, café-style touch to your cake and amps up the coffee vibe.
Side Dishes
This cake pairs beautifully with a scoop of dairy-free vanilla ice cream or a dollop of coconut whipped cream. Fresh berries also add a lovely tart contrast that balances the richness.
Creative Ways to Present
For a stunning dessert centerpiece, slice the cake into neat squares and serve on rustic wooden boards. You can also turn leftovers into fancy trifle layers with vegan custard, coffee syrup, and chopped candied walnuts for a delightful twist.
Make Ahead and Storage
Storing Leftovers
Store any leftover Vegan Coffee Walnut Cake in an airtight container in the refrigerator. It will keep beautifully fresh for up to 4-5 days. Before serving, remove it from the fridge about an hour early to allow the frosting and cake to soften slightly and come back to their optimum texture.
Freezing
If you want to save some for later, this cake freezes wonderfully. Wrap it tightly in plastic wrap and place it in an airtight container before freezing. When you’re ready to enjoy, thaw it overnight in the fridge to preserve its beautiful crumb and creamy frosting.
Reheating
The cake is best served at room temperature. To reheat slices, let them come to room temperature naturally or warm briefly (about 10-15 seconds) in a microwave for a soft and comforting treat, but avoid overheating to keep the frosting intact.
FAQs
Can I use regular coffee if I don’t have espresso?
Absolutely! Strong brewed coffee works perfectly in this Vegan Coffee Walnut Cake Recipe, providing plenty of flavor without needing espresso. Just make sure it’s cooled completely before mixing it in.
What can I substitute for vegan buttermilk?
If you don’t have vegan buttermilk on hand, simply mix 1 tablespoon of apple cider vinegar or lemon juice with 240 ml of your preferred plant-based milk and let it sit for 5-10 minutes. This will create the tangy acidity needed to react with the baking soda for a light, airy cake.
Are walnuts essential or can I use other nuts?
Walnuts contribute that signature crunch and earthy flavor this cake is known for. However, you could substitute pecans or hazelnuts if you prefer, though they will shift the flavor profile slightly. Just ensure nuts are finely chopped for even distribution.
Can I make the cake gluten-free?
This recipe calls for all-purpose flour, but you can experiment with a gluten-free baking blend. Just check that it includes xanthan gum or another binder for optimal cake structure and moisture retention.
How do I make the vegan coffee buttercream mentioned in the recipe?
The vegan coffee buttercream is typically made by whipping vegan butter with powdered sugar and brewed coffee or espresso until fluffy and spreadable. It adds the perfect smooth, rich coffee flavor that complements the cake beautifully.
Final Thoughts
If you want a cake that feels cozy, rich, and welcoming, this Vegan Coffee Walnut Cake Recipe truly delivers. It’s the kind of treat that brightens up afternoon coffee times, impresses at dinner parties, and comforts on rainy days. Give it a try, and I promise you’ll find yourself coming back to it again and again!
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Print
Vegan Coffee Walnut Cake Recipe
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour 15 minutes
- Yield: 16 servings
- Category: Dessert
- Method: Baking
- Cuisine: Western/International
- Diet: Vegan
Description
A rich and moist Vegan Coffee Walnut Cake featuring finely chopped walnuts, espresso-infused batter, and layered with vegan coffee Swiss meringue buttercream and candied walnuts, perfect for coffee lovers seeking a dairy-free, plant-based dessert option.
Ingredients
Cake Batter
- 100 g walnuts (finely chopped)
- 260 g all-purpose flour (sifted)
- 220 g soft brown sugar
- 2 ½ teaspoons baking powder
- ½ teaspoon baking soda
- ¼ teaspoon sea salt
- 120 ml espresso or strong coffee (cooled to room temperature)
- 240 ml vegan buttermilk
- 120 ml olive oil or neutral oil (sunflower or rapeseed)
- 1 tablespoon vanilla extract
Second Cake Batter (if making two cakes)
- 150 g walnuts (finely chopped)
- 400 g all-purpose flour (sifted)
- 330 g soft brown sugar
- 3 ¾ teaspoons baking powder
- ¾ teaspoon baking soda
- ½ teaspoon sea salt
- 180 ml espresso or strong coffee (cooled to room temperature)
- 360 ml vegan buttermilk
- 180 ml olive oil or neutral oil (sunflower or rapeseed)
- 1 ½ tablespoons vanilla extract
Candied Walnuts
- 200 g walnut halves
- 2 tablespoons soft brown sugar or granulated sugar
- 1 tablespoon vegan butter or olive oil
Vegan Coffee Buttercream
- 1 batch vegan coffee Swiss meringue buttercream (prepared separately)
Instructions
- Measure Ingredients: For precision, measure all ingredients using a digital kitchen scale to ensure accuracy and perfect cake texture.
- Prepare Oven and Pans: Preheat your oven to 160°C (320°F) fan or 180°C (356°F) conventional. Line the bases of two cake tins with parchment paper circles and grease the sides liberally with oil or vegan butter.
- Mix Dry Ingredients: In a large mixing bowl, whisk together the finely chopped walnuts, sifted flour, soft brown sugar, baking powder, baking soda, and sea salt until evenly combined.
- Mix Wet Ingredients: In a separate medium bowl, whisk together cooled espresso, vegan buttermilk, olive oil, and vanilla extract until thoroughly blended.
- Combine Wet and Dry: Pour the wet ingredients into the dry mixture and whisk gently until no visible pockets of flour remain. Avoid over-mixing to keep the cake tender.
- Bake the Cake: Divide the batter evenly between the prepared cake tins. Bake in the preheated oven for 35-45 minutes. Test doneness by inserting a toothpick or knife; it should come out clean.
- Cool Cakes: Let the cakes cool in their pans for 10-15 minutes before transferring them to a wire rack. Allow to cool completely. Once cool, refrigerate in an airtight container until ready to assemble.
- Prepare Vegan Coffee Buttercream: Meanwhile, make the vegan coffee Swiss meringue buttercream according to your preferred recipe or pre-prepared batch.
- Make Candied Walnuts: In a pan, gently cook walnut halves with sugar and vegan butter or oil over medium-low heat for 5-7 minutes, constantly tossing until the sugar melts and walnuts are fragrant. Remove from heat and cool on parchment paper. Reserve 16 walnut halves for decoration; chop the rest for filling and topping.
- Assemble Cake: Spread about one-third of the frosting evenly over the first cake layer. Sprinkle half of the chopped candied walnuts on top.
- Layer and Frost: Place the second cake layer on top and coat the entire cake’s sides and top with another third of the frosting smoothly using an offset spatula.
- Decorate: Pipe the remaining frosting decoratively on top and arrange the reserved candied walnut halves. Sprinkle the remaining chopped walnuts over the cake for a textured finish.
- Storage: Store the cake in an airtight container in the refrigerator for 4-5 days. Before serving, remove it from the fridge for about an hour to soften the frosting and cake. Leftovers can be frozen in airtight containers for future enjoyment.
Notes
- Use a digital kitchen scale for ingredient accuracy to ensure consistent texture and flavor.
- Allow espresso or strong coffee to cool to room temperature before mixing to avoid curdling the batter.
- Be careful not to overmix the batter to keep the cake moist and tender.
- For vegan buttermilk, mix plant-based milk with lemon juice or vinegar and let sit for 5-10 minutes before use.
- The cake is best served fresh but can be frozen to extend shelf life.
- Adjust sweetness by altering the amount of soft brown sugar according to taste preferences.
