Coffee Walnut Cake

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Coffee Walnut Cake is a rich, moist cake with a deep coffee flavor that perfectly complements the crunch of toasted walnuts. The cake is infused with brewed coffee, giving it a sophisticated taste, while the addition of walnuts provides a satisfying crunch. This cake is perfect for coffee lovers and pairs beautifully with a cup of espresso or tea. Its perfect balance of sweetness and nuttiness makes it an irresistible treat for any occasion.

Origin:

This cake is inspired by the timeless combination of coffee and nuts, a flavor pairing popular in many European desserts. Coffee walnut cakes are often enjoyed in the UK and other parts of Europe, where coffee-flavored desserts are a classic choice for teatime or as a sweet indulgence.

Ingredients:

For the Cake:

  • 1 1/2 cups (180g) all-purpose flour
  • 1 1/2 teaspoons baking powder
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt
  • 1/2 cup (115g) unsalted butter, softened
  • 1 cup (200g) granulated sugar
  • 2 large eggs
  • 1/4 cup (60ml) brewed coffee (cooled)
  • 1 teaspoon vanilla extract
  • 1/2 cup (120ml) buttermilk (or regular milk)
  • 1/2 cup (50g) chopped walnuts (toasted)

For the Coffee Buttercream Frosting:

  • 1 cup (230g) unsalted butter, softened
  • 3 cups (360g) powdered sugar
  • 2 tablespoons brewed coffee (cooled)
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon salt
  • 1/4 cup (30g) finely chopped walnuts (for decorating)

Instructions:

Prepare the Cake:

  1. Preheat the oven to 350°F (175°C). Grease and line two 8-inch round cake pans with parchment paper.
  2. In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
  3. In a large mixing bowl, beat together the softened butter and granulated sugar until light and fluffy (about 3-5 minutes).
  4. Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.
  5. Gradually add the dry ingredients to the butter mixture, alternating with the brewed coffee and buttermilk. Begin and end with the dry ingredients, mixing until just combined.
  6. Gently fold in the toasted walnuts until evenly distributed.
  7. Divide the batter evenly between the prepared cake pans and smooth the tops.
  8. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Allow the cakes to cool in the pans for 10 minutes before transferring them to a wire rack to cool completely.

Prepare the Coffee Buttercream Frosting:

  1. In a large mixing bowl, beat the softened butter with a hand mixer or stand mixer until creamy and smooth.
  2. Gradually add the powdered sugar, one cup at a time, mixing well after each addition.
  3. Stir in the cooled brewed coffee, vanilla extract, and salt. Continue beating until the frosting is light and fluffy (about 3-5 minutes).

Assemble the Cake:

  1. Once the cakes have cooled completely, place one layer on a serving platter. Spread a generous layer of coffee buttercream frosting over the top.
  2. Place the second cake layer on top and frost the entire cake with the remaining coffee buttercream.
  3. Decorate the top and sides of the cake with the finely chopped walnuts for a beautiful finish.

Serve:

  1. Let the cake set for 15-20 minutes before slicing to allow the frosting to firm up slightly. Enjoy with a cup of coffee or tea.

Tips for Success:

  • For extra flavor, you can add a tablespoon of coffee liqueur (such as Kahlúa) to the batter or frosting.
  • Make sure to toast the walnuts before adding them to the cake or using them for decoration to bring out their nutty flavor.
  • The cake can be made a day ahead of time; store it in an airtight container at room temperature or refrigerate if you prefer a firmer frosting.

Recommendations:

  • Serve this cake with a strong cup of coffee or a latte to enhance the coffee flavor.
  • Leftover cake can be stored in an airtight container for up to 3 days. If refrigerated, let it come to room temperature before serving.

Nutrition (per serving, approximate for 12 servings):

  • Calories: ~350
  • Protein: 4g
  • Fat: 21g
  • Carbohydrates: 38g
  • Sugar: 28g
  • Fiber: 2g
  • Sodium: 180mg

This Coffee Walnut Cake is a delightful treat that combines the bold flavor of coffee with the richness of walnuts—perfect for any coffee lover!

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