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Microwave Coffee and Walnut Cake

This quick and easy microwave mug cake recipe will have you whipping up a perfectly moist and intensely flavoured coffee and walnut cake in just three minutes!


This moist cake is topped with a delicious coffee-flavoured icing and is so quick and easy to make.Whip this cake up for afternoon tea or stick a candle in it for a speedy birthday treat!

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For the cake:
2 tbsp softened butter, plus extra for greasing
1 tbsp chicory and coffee essence
2 tbsp self-raising flour
2 tbsp soft brown sugar
1 tbsp chopped walnuts
½ beaten egg
For the icing:
2 tbsp mascarpone cheese
1 tbsp icing sugar
½ tsp chicory and coffee essence
To decorate:
2 walnut halves

Essential kit

You will need: a small 300ml / ½ pint microwaveable mug and a 1000W, category-E microwave.


1. To make the cake, lightly butter the inside of a small 300ml / ½ pint microwaveable mug. Add the butter and cook on high for 30 seconds -1 minute, or until melted. Stir in all the remaining cake ingredients and mix well.

2. Microwave on high for 1 minute, until risen and spongy. Allow to stand for 1 minute, then if you prefer, remove from the cup and allow to cool.

3. To make the icing, beat together the mascarpone with the icing sugar and chicory and coffee essence until smooth.

4. Spread the top of the cake with the icing and decorate with the walnut halves.

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