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1 minute vegan chocolate mug cake

A rich vegan chocolate cake made in a mug in the microwave. Store-cupboard ingredients, no eggs, about 5 minutes start to finish.

Updated October 2026

For when you need chocolate cake now. This mixes straight in the mug and cooks in about a minute, and there is nothing in it you will not already have in the cupboard.

You will need (1 large mug)

  • 4 tbsp self-raising flour (or plain flour plus ¼ tsp baking powder)
  • 2 tbsp cocoa powder
  • 2 to 3 tbsp sugar
  • A pinch of salt
  • 4 tbsp plant milk
  • 1½ tbsp vegetable or sunflower oil
  • A few drops of vanilla extract
  • 1 tbsp dark chocolate chips or chopped dark chocolate (optional, check it is dairy-free)

Method

  1. Put the flour, cocoa, sugar and salt in a large microwave-safe mug and stir with a fork to break up any lumps.
  2. Add the milk, oil and vanilla and mix until smooth, scraping the bottom of the mug. Stir in the chocolate.
  3. Microwave on high for 60 to 75 seconds in an 800W microwave (a little less in a more powerful one). The top should look set but slightly sticky.
  4. Leave to stand for a minute. It keeps cooking as it cools.

Do not overcook it. An extra 20 seconds turns a soft, fudgy cake into a sponge. Start with less time, check, and add 10 seconds if needed.

Ways to serve it

  • A scoop of dairy-free vanilla ice cream on top while it is hot.
  • A spoon of chocolate or hazelnut spread pushed into the middle before cooking for a molten centre.
  • A handful of raspberries, or a few chopped dates for a sticky toffee feel.

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