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Vegan coffee walnut cake

Vegan Coffee Walnut Cake

  • Author: romylondonuk
  • Prep Time: 45
  • Cook Time: 30
  • Total Time: 1 hour 15 minutes
  • Yield: 1 cake 1x
  • Category: Cake
  • Method: Baking
  • Cuisine: German
  • Diet: Vegan


Super easy Vegan Coffee Walnut Cake Recipe topped with a vanilla chai frosting is perfect if you have some walnuts in the cupboard! Made with flax seeds, vanilla, and instant coffee.


  • 1 tbsp flaxseeds
  • 3 Tbsp hot water
  • 300g self-raising flour
  • 3 Tbsp maple syrup
  • 50g walnuts, plus more for decoration
  • 2 tsp cinnamon
  • 1 tsp baking powder
  • 4 Tbsp coffee – either instant coffee or  a fresh one
  • 200 ml soya milk
  • 120 ml rapeseed oil
  • coconut oil for the baking dish

For the icing:

  • 2 cups icing sugar
  • 1-2 Tbsp chai tea (ready-made or a chai tea bag soaked in the fridge over night)
  • 1/2 tsp vanilla essence
  • 2-3 tbsp soy milk


  1. Mix the flaxseeds with the hot water and set aside for 10 minutes.
  2. Mix the flour with the baking powder and cinnamon, then add in a handful of walnuts, leaving some nuts left over for the cake decoration at the very end.
  3. In a large jug blend the coffee and soy milk with the maple syrup, then add the rapeseed oil.
  4. Once combined, add the flaxseed-mixture to the flour-mix and slowly add the liquids whilst stirring with a spatula.
  5. Oil a baking tin (I used a round one!) with coconut oil and add the mixture to the tin. I prefer not to use baking paper for my cakes, as it gets easily stuck on the cake and ruins it. Instead I prefer oiling the tins and then lightly dusting with a little flour.
  6. Bake in the oven for 30 minutes at 180 degrees, remove the cake and let it cool completely before adding the icing.

For the icing:

  1. Add 2 cups of icing sugar to a bowl, then slowly add the chai tea and vanilla essence whilst stirring with a fork.
  2. Add in a little soy milk until the mix is smooth, but thick. If it gets too runny, add more icing sugar. The consistency is supposed to be thick, but not crumbly.
  3. Gently pour the icing onto the cold cake, decorate with the leftover walnuts and transfer the cake to the fridge to set.

Keywords: cakes, vegan walnut coffee cake, vegan cake, vegan bake