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slice of coffee and walnut cake on a white plate
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4.41 from 5 votes

Easy Coffee and Walnut Cake Recipe

Easy coffee and walnut cake is a moist layer cake that’s a wonderful treat for birthdays and celebrations.  This recipe shows you how to make two layers of fluffy sponge and a delicious coffee buttercream.  The crunch of walnuts make this English treat amazing!
Prep Time40 minutes
Cook Time20 minutes
Total Time1 hour
Servings: 16 servings
Calories: 409kcal

Ingredients
 

For the Cake

  • 1 ¾ cup + 2 tablespoons all-purpose flour
  • 1 cup unsalted butter softened
  • 1 cup + 2 tablespoons caster sugar
  • 1 cup walnuts chopped
  • 4 large eggs at room temperature
  • 2 ½ teaspoons baking powder
  • 2 tablespoons Camp essence
  • 1 tablespoon whole milk

For the Icing & Decoration

  • ½ cup unsalted butter softened
  • 2 ½ cups icing sugar sifted
  • 1 tablespoon heavy whipping cream
  • 2 ½ teaspoons Camp essence
  • 10-16 walnut halves one for each slice
  • 1 tablespoon unsweetened cocoa powder for stencil (optional)

Instructions

Making the Cake

  • Preheat the oven to 350°F (175°C).  Lightly butter two 9-inch (22 cm) springform tins and line their bases with baking paper.  If using cake strips, soak them in cold water for 10 minutes and fasten them around the tins.
  • Crack the eggs into the bowl of a stand mixer, then add the flour, butter, sugar, baking powder, walnuts, and Camp essence.
  • Blend on medium-low speed until well combined.  The batter should hesitantly fall from a spoon when shaken.  If it doesn't, gradually add the tablespoon of milk until it reaches the right consistency.
  • Evenly divide the batter between the two pans and spread it to the edges.
  • Bake at 350°F for 18-20 minutes, until a toothpick inserted into the center comes out clean.
  • Let the cakes cool for 10 minutes, then take them out of the tins and let them cool completely on wire racks, about 1 hour.

Making the Buttercream

  • Beat the butter in the bowl of a stand mixer until smooth.  Sift the icing sugar into the butter and beat on medium speed until combined.
  • Scrape down the sides of the bowl, then beat in the coffee essence and 2 teaspoons of heavy cream.  Add additional cream as needed to give the icing a spreadable consistency.  Taste and adjust the amount of essence as you desire.
  • For an extra fluffy icing, turn the mixer onto medium high speed and beat for 1-2 minutes until the buttercream is fluffy and smooth.

Decorating the Cake

  • Peel the baking paper off the cakes, then set aside the one with the nicest top.
  • Place the other layer top side up on the serving plate and spread half of the icing on top.  Put the other layer on top to create a sandwich, then spread the remaining icing on top.
  • If desired, place a clean stencil on top and dust with cocoa powder to create a letter, picture, or pattern.
  • Place the walnut halves around the edges.  Slice and serve.

Notes

  • Use Camp essence to get the best flavor.  However, you can substitute by dissolving 4 teaspoons of instant coffee in 1 tablespoon of hot water.
  • Be careful not to overbake the cakes to prevent them from drying out.
  • Sheet cake version: bake the batter in a 9x13-inch pan.  Give the cake a few extra minutes to bake.
  • Store leftovers in an airtight container at room temperature for up to 3 days.
  • Freeze leftovers sealed in an airtight container or zip-top freezer bag for up to 1 month.

Nutrition

Calories: 409kcal | Carbohydrates: 44g | Protein: 5g | Fat: 25g | Saturated Fat: 12g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 94mg | Sodium: 89mg | Potassium: 86mg | Fiber: 1g | Sugar: 31g | Vitamin A: 617IU | Vitamin C: 1mg | Calcium: 62mg | Iron: 1mg
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