This cake is simple yet full of flavor, combining the deep aroma of coffee with the earthy crunch of walnuts. The sponge stays moist and tender, while the buttercream adds a creamy finish. It’s a timeless recipe that feels both nostalgic and sophisticated, and it’s easy to make with everyday ingredients.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
For the cake: 1 3/4 cups plain flour 2 tsp baking powder 1/4 tsp salt 3/4 cup butter, softened 3/4 cup sugar 3 eggs 2 tbsp instant coffee dissolved in 2 tbsp hot water 1/2 cup milk 1 cup walnuts, chopped
For the buttercream: 1/2 cup butter, softened 2 cups icing sugar 1–2 tbsp strong brewed coffee
Directions
Preheat your oven to 180°C and grease and line two 20cm round cake tins.
In a bowl, sift together the flour, baking powder, and salt.
In another bowl, cream the butter and sugar until light and fluffy.
Add the eggs one at a time, beating well after each addition.
Mix in the dissolved coffee.
Fold in the dry ingredients alternately with the milk, mixing gently until just combined.
Stir in the chopped walnuts.
Divide the batter evenly between the prepared tins and smooth the tops.
Bake for 25–30 minutes, or until a skewer inserted into the center comes out clean.
Allow the cakes to cool completely before assembling.
For the buttercream, beat the butter until smooth, then gradually add icing sugar and coffee until creamy and spreadable.
Spread buttercream between the cake layers and over the top. Decorate with extra walnuts if desired.
Servings and timing
This recipe serves 8–10 people. Prep time is 20 minutes, bake time is 25–30 minutes, and total time is approximately 50 minutes plus cooling and decorating.
Variations
You can add a splash of vanilla extract for extra depth of flavor. For a richer taste, use espresso instead of instant coffee. If you prefer a lighter texture, substitute part of the butter with oil. You can also make it as a single-layer tray cake for a simpler presentation.
Storage/Reheating
Store the cake in an airtight container at room temperature for up to 3 days, or refrigerate for up to 5 days. Bring to room temperature before serving for the best texture. Individual slices can be lightly warmed in the microwave for a softer crumb.
FAQs
Can I use fresh brewed coffee instead of instant?
Yes, strong brewed coffee works well, but make sure it is cooled before adding.
Can I make this cake ahead of time?
Yes, you can bake the layers in advance and frost them later.
Can I make it without walnuts?
Yes, you can omit the walnuts or replace them with another nut.
Why did my cake turn out dry?
Overbaking or using too much flour can lead to a dry texture.
Can I freeze this cake?
Yes, the unfrosted cake layers freeze well for up to 2 months.
How do I make the flavor stronger?
Use a stronger coffee or add a bit more dissolved coffee to the batter.
What frosting works best?
Coffee buttercream is traditional, but cream cheese frosting also pairs nicely.
Can I make cupcakes instead?
Yes, simply divide the batter into cupcake liners and reduce the baking time.
Why is my buttercream too runny?
It may need more icing sugar or less liquid coffee.
How do I decorate the cake?
Top with walnut halves, a dusting of cocoa powder, or simple swirls of buttercream.
Conclusion
Coffee and Walnut Cake is a timeless favorite that combines rich coffee flavor with the crunch of walnuts in a soft, moist sponge. With its easy preparation and classic appeal, it’s a reliable recipe that’s perfect for both everyday baking and special occasions.
This classic Coffee and Walnut Cake features soft, fluffy sponge layers infused with rich coffee flavor and crunchy walnuts, finished with a smooth coffee buttercream. Perfect for afternoon tea or special occasions, this coffee walnut cake is a timeless, elegant dessert.
Ingredients
For the Cake:
1 3/4 cups plain flour
2 tsp baking powder
1/4 tsp salt
3/4 cup butter, softened
3/4 cup sugar
3 eggs
2 tbsp instant coffee dissolved in 2 tbsp hot water
1/2 cup milk
1 cup walnuts, chopped
For the Buttercream:
1/2 cup butter, softened
2 cups icing sugar
1–2 tbsp strong brewed coffee
Instructions
Preheat oven to 180°C and grease and line two 20cm round cake tins.
Sift together flour, baking powder, and salt in a bowl.
In another bowl, cream butter and sugar until light and fluffy.
Add eggs one at a time, beating well after each addition.
Mix in the dissolved coffee.
Fold in dry ingredients alternately with milk until just combined.
Stir in chopped walnuts.
Divide batter evenly between tins and smooth the tops.
Bake for 25–30 minutes, or until a skewer inserted comes out clean.
Cool completely before assembling.
For the buttercream, beat butter until smooth, then gradually add icing sugar and coffee until creamy.
Spread buttercream between layers and over the top. Decorate with extra walnuts if desired.
Notes
Do not overmix to keep the sponge light and fluffy.Use strong coffee for a deeper flavor.Ensure cakes are fully cooled before frosting.Adjust coffee in buttercream to desired strength and consistency.
