Hazelnut Mocha Cake

Happy birthday Melissa!

Coffee cake with a chocolate hazelnut crunch in the middle

Processed with VSCOcam with f2 preset

This week, I decided to bake a coffee cat cake for my friend, and because she likes cats, I thought Pusheen would do the trick!

Hazelnut mocha cake
Time taken: 4 hours


For the cake: (adapted from Nigella Lawson)

  • 225 grams softened unsalted butter (room temperature)
  • 225 grams caster sugar
  • 200 grams plain flour
  • 5 teaspoons instant coffee powder (or as much as you want!)
  • 2 ½ teaspoons baking powder
  • ½ teaspoon bicarbonate of soda
  • 4 large eggs
  • 2 tablespoons milk

For the filling

  • 250g softened butter (room temperature)
  • 500g icing sugar
  • 180g chocolate
  • 50g chopped hazelnuts
  • ½ tsp vanilla extract


For the cake:

  1. Preheat oven to gas mark 4
  2. Whisk butter and sugar together
  3. Whisk in the flour, baking powder and baking soda
  4. Dissolve the coffee powder in 1 tbsp of hot water, and then pour this into the batter. Whisk until smooth
  5. Add in the eggs and then pour in the milk in batches, each time whisking until smooth
  6. Grease baking case and then pour in the cake batter
  7. Bake in oven for 40-50 minutes, until your toothpick comes out clean
  8. Leave cake to cool before slicing into half

For the filling:

  1. Melt the chocolate
  2. In a bowl, whisk the butter until pale yellow and fluffy
  3. Add in the icing sugar in batches of 100g until fully incorporated
  4. Whisk in 100g of your melted chocolate, and then add in your vanilla extract
  5. Pipe this buttercream frosting onto the bottom half of your cake
  6. Sprinkle your hazelnuts on top of that, and then drizzle the remaining melted chocolate on top of the hazelnuts.
  7. Put this in the fridge for 30 minutes – this will give that chocolate crunch to your cake!
  8. Place the other half of the cake on top.
  9. For more decoration, pipe the sides of the cake with more chocolate buttercream frosting, and then coat with shaved almonds

3 thoughts on “Hazelnut Mocha Cake

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