Coffee & California Walnut Mug Cake

Coffee & California Walnut Mug Cake.

Hello friends, happy Wednesday. So how are you today?

California Walnuts has created four new recipes, to inspire you in the kitchen this autumn.

I have shared 3 of the recipes here and now I am sharing the last recipe today.

Finally an indulgent pudding; a California walnut and coffee mug cake.

Indulge in the ultimate coffee-infused treat with a twist – the Coffee & California Walnut Mug Cake.

Coffee & California Walnut Mug Cake.

Coffee & California Walnut Mug Cake:

Coffee & California Walnut Mug Cake. This delightful dessert is a quick and convenient way to satisfy your sweet tooth and coffee cravings simultaneously.

Made with a simple batter that combines the rich, bold flavours of coffee with the earthy crunch of California walnuts, this mug cake promises a harmonious marriage of taste and texture.

In just a matter of minutes, you can whip up a warm, moist cake right in your favorite mug, making it the perfect solution for those sudden dessert hankerings.

With the aromatic essence of coffee and the nutty goodness of walnuts, this mug cake is a delightful, single-serving sensation that will leave you craving for more.

Table Of Contents:

  • Firstly, Coffee & California Walnut Mug Cake Ingredients.
  • Secondly, Coffee & California Walnut Mug Cake Method.
  • Thirdly, Other Recipes Ideas.

Coffee & California Walnut Mug Cake:

Grown in the Californian sunshine by many multi-generational farmers.

California Walnuts are a high-quality, mild and creamy nut that add flavour, crunch and depth to a host of savoury and sweet dishes, as well as a healthy snack.

Indulge in the ultimate coffee-infused treat with this Coffee & California Walnut Mug Cake. This single-serving delight is a perfect blend of rich coffee flavours and the buttery crunch of California walnuts.

Baked to perfection in a mug, this moist and decadent cake is ready in minutes, offering a quick and satisfying dessert experience.

Whether you’re a coffee lover or a walnut enthusiast, this delightful creation will captivate your taste buds with its irresistible aroma and delightful texture. Treat yourself to a mug of pure indulgence.

Prep: 5 minutes

Cook: 2-3 minutes

Makes: 1

  • 1 medium egg
  • 2 tbsp milk
  • 3 tbsp vegetable oil
  • 1 tsp instant coffee
  • 4 tbsp self-raising flour
  • 4 tbsp caster sugar
  • 25g California Walnuts, chopped


  1. Beat the egg in a 350ml heatproof mug with the milk and oil.  Blend the coffee with 1 tsp boiling water and add to the mug with the flour, sugar and all but 2 tsp walnuts, mix well to combine.
  2. Microwave on full power for 2-3 minutes or until a skewer comes out clean. Allow to cool.
  3. Sprinkle with reserved walnuts.

Cooks tip: Coffee essence work just as well as instant coffee. You can also serve with whipped cream and a dust of cocoa powder. Add these when sprinkling with the reserved walnuts.

Coffee & California Walnut Mug Cake:

Cost per serving £1.04

Walnuts are also a good source of (antioxidants) copper and vitamin E and micronutrients magnesium, vitamin B6, folate and thiamine (vitamin B1) and a source of (antioxidant) zinc, pantothenic acid (vitamin B5) and minerals iron and potassium.

So what do you think about this recipe?

Do you also fancy trying it? Because I know I do. Recipe and image courtesy of California Walnuts.

Coffee & California Walnut Mug Cake.

You Might Also Like:

Raspberry, Honey & California Walnut Baked Oats:

Firstly, Raspberry, Honey & California Walnut Baked Oats. 

For breakfast; raspberry, honey and California walnut baked oats. Raspberry, Honey & California Walnut Baked Oats. So yummy.

Secondly, Leek, Potato & California Walnut Soup. 

For lunch or a simple supper; a tasty leek, potato and California walnut soup. Leek, Potato & California Walnut Soup. So good.

Thirdly, California Walnut Mince Chilli Con Carne. 

For dinner; a versatile plant-based chilli con carne with five different ways to use it California Walnut Mince Chilli Con Carne. So tasty.

Baked Figs, California Walnuts And Camembert:

Fourthly, Baked Figs, California Walnuts And Camembert. 

Over the next few days I will be sharing some tasty recipes from California Walnuts. They have created some new Christmas recipes, which all look delicious. 

Walnuts have long been considered synonymous with the festive season.

Often enjoyed freshly cracked open with a nutcracker, or more commonly bought already shelled, walnuts are used in a variety of sweet and savoury seasonal dishes – or simply enjoyed on their own!

The unique taste and texture of walnuts makes them a supremely versatile ingredient and means they can do so much when it comes to Christmas cooking.

Incorporating them into seasonal starters, sharers, mains and desserts will add crunch, sweetness, colour, texture, and more. So today I am sharing a baked camembert recipe with you. Baked Figs, California Walnuts And Camembert.

Fifth, Christmas Nut Loaf With California Walnuts. 

Are you looking for Christmas recipes?

How about making a Christmas Nut Loaf? Today I am sharing one of California walnuts recipes with you. Press the mixture into large balls and bake for 15 minutes to serve as part of a buffet.

Try using cannellini beans or chickpeas instead of the kidney beans. Christmas Nut Loaf With California Walnuts.

Walnut And Cherry Yule Log: Christmas Recipe:

Sixth, Walnut And Cherry Yule Log: Christmas Recipe. 

How yummy! If you are looking for some yule log recipes to try out this year, you have come to the right place.

Fancy making a classic yule log recipes with a modern twist? Try spreading the cake with your favourite jam before adding the cream instead of adding cherries. Walnut And Cherry Yule Log: Christmas Recipe. So good.

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Coffee & California Walnut Mug Cake.
Claire Justine
Claire Justine

Hi, I am Claire and I created Claire Justine in 2011. I hope you enjoy reading my posts as much as I love writing them. Please leave a comment below and share your thoughts with us.

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  1. Mica - Away From The Blue
    9 October 2022 / 04:32

    Oh I love mug cakes! mine never look quite so pretty though, haha! Thanks for sharing!

    Hope you are having a great weekend. Quiet Sunday for us as it’s cold and rainy today!

  2. Heather Noire
    7 October 2022 / 00:42

    This looks so delicious. I definitely need to check this recipe out. Thank you for sharing this.

    • 9 October 2022 / 17:15

      Thanks so much for visiting.

  3. Heather
    5 October 2022 / 14:27

    I could go for one of these right now!

    • 9 October 2022 / 17:14

      Thanks for stopping by, Heather.