Coffee and Walnut Cake

5 from 8 votes

This easy Coffee and Walnut Cake is a coffee lover's dream! It has four layers of coffee-flavored sponge frosted with coffee buttercream and crushed walnuts. Serve it during birthdays, at teatime, or as dessert.

Prep Time10

Cook Time25

Total Time35

Course: Dessert, Sweet Treat

Cuisine: American, British, coffee

Servings: people

Calories: 859kcal

Author: Jen Sim

Equipment

Hand or stand mix
7" Baking tin

Ingredients

Coffee Cake

360 g self-raising flour
360 g unsalted butter
360 g brown sugar
350 g eggs
3 ½ tablespoon of ground instant coffee
3 teaspoon of baking powder
2 tablespoon of milk

Coffee Buttercream

300 g unsalted butter
475 g of icing sugar
2 tablespoon of instant coffee depending on how strong you want the coffee flavor to be
1 tablespoon of hot water to dissolve the instant coffee
300 g walnuts crushed

Instructions

How to Make Coffee and Walnut Cake

Preheat oven to 160C fan/180C/325F/Gas 3. Grease two non-stick, 7 inch cake tins and set aside.
Add self-raising flour, baking powder and instant coffee to a medium bowl and mix until well combined.
Next, add unsalted butter and brown sugar to a large bowl. Then, whisk for 3-5 minutes.
Pour one egg into the bowl and whisk until it disappears. Repeat this step for the remaining eggs.
Add half of the dry ingredients into the egg mix and pour in a splash of milk and mix for a minute. Repeat this step for the remaining dry ingredients and mix until well combined.
Pour cake batter into the greased tins and bake for 25 minutes or until done. Remove cakes from tins and leave to cool upside down.

How to Make Coffee Buttercream

Whisk unsalted butter in a large bowl for 1 minute.
Add half of the sifted icing sugar to the butter and whisk for 3 minutes.
Then, add the remaining icing sugar and whisk for another 3 minutes. Next, add the instant coffee and whisk for 2-3 more minutes.
Decorate cake with buttercream and walnuts.

Notes

Make sure unsalted butter, eggs and milk are at room temperature before mixing! This ensures that the ingredients mix together properly.
Sieve dry ingredients before baking to make sure the ingredients mix together evenly.
Use a large spoon to mix the cake batter after adding the dry ingredients. This will make the cake fluffy and prevent over mixing.
Make sure the cake is fully cool before you start decorating. If the cake is not cool then the buttercream will melt when you apply it to the cake (nightmare).

Nutrition