Vegonary 2022: Vegan Chocolate Cake

This is such an interesting recipe, combining 2 things so worth exploring: vegan food, and sourdough waste (which can be used if available, but the cake works equally well without). The result is dense and gooey; akin to brownies.

Sourdough waste gooey chocolate brownie cake - moist and dense: a deliciously rich vegan  tea time treat, or healthy dessert!
Scrumptious – who would have guessed it’s vegan & uses Sourdough Waste?!

Since 2014, Vegonary has inspired and supported more than one million people across 192 countries to adopt a vegan diet – or simply to try vegan recipes, and perhaps increase their intake of plant based foods: fresh, tasty, and healthy for us, & the planet! January each year is flagged up by the Vegonary movement as a good time to think about increasing our intake of plant based foods; see their website for tips and inspiration. This is a quick and very tasty recipe in its own right, as well as ticking the box for those avoiding dairy or trying a vegan diet.

The art of Sourdough bread making necessitates ‘feeding’ and dividing the natural yeast ‘starter’ regularly. To avoid waste, a good repertoire of recipes for using that wonderfully bubbly mass is a must!

NB: If you don’t have sourdough starter, just increase flour to 1.5 cups, and water to 1 cup.


  • 1 cup plain flour
  • 1 cup brown sugar
  • ¼ cup cocoa powder
  • 1 tsp baking soda
  • ½ tsp salt
  • ½ cup unfed discarded starter (if you have it; if not, see note above)
  • ½ cup  water
  • 1 Tbs white or cider vinegar
  • 2 tsp vanilla extract
  • ⅓ cup olive oil plus extra for greasing the pan

Coconut buttercream frosting, optionalCombine & beat well:

  • 2 Tbs coconut butter
  • 1 cup icing sugar
  • 1 to 2 Tbs of plant based milk of your choice
  • ½ tsp vanilla extract
  • 1 tsp lemon juice


  1. Heat the oven to 180 C. Line an 8″ / 20cm cake tin with baking paper.
  2. Combine sifted flour with dry ingredients in a large bowl.
  3. Combine wet ingredients in a large jug or bowl and mix.
  4. Add wet ingredients to dry, and mix.
  5. Bake for 25 – 30 minutes until a skewer inserted into the middle comes out clean.
  6. Leave to cool on a wire rack.
  7. Ice, if wished, once cool.
  8. Serve alone, or with berry or cherry compote and / or dairy free yogurt or ice cream.


If you prefer smaller cakes, use x9 muffin cases, and bake for a shorter time: around 15 minutes, or until a fork inserted in the centre comes out clean.

Whole Wheat sourdough loaf fresh from the oven 🙂

Recipe originally from Zero Waste Chef.

Sourdough facts:

An average slice of sourdough bread has a Glycemic Index of around 49. Any food with a score lower than 50 is considered to be a ‘low GI food’ – healthy, as our bodies break down their sugars more slowly than foods with a high GI; meaning that you feel full for longer. The effects of slow digestion are also a more stable blood sugar and insulin level: which is thought to be positive in terms of mood, energy and concentration – as well as avoiding diabetes.

For great resources to get you started with Sourdough look online – there’s so much advice. One of my ‘go to’ websites is ‘Clever Carrot’: see their guide to getting started with making artisan sourdough here.

8 thoughts on “Vegonary 2022: Vegan Chocolate Cake

  1. Yummm. I’m recently trying vegan diets so this sounds perfect.

    Liked by 1 person

    1. Thank you & Thats Great, Saania – enjoy it!

      Liked by 1 person

  2. We did have a go at making sourdough when my brother gave us some starter and very delicious it was, too! I do like to have vegan and/or vegetarian days every week and we have definitely cut back on our meat consumption. The chocolate cake looks divine!


    1. So glad you enjoyed the sourdough – are you tempted to have another go at making it yourself? Your plan to gradually increase plant based foods sounds perfect – gradual rather than ‘cold turkey’, which just wouldn’t be right – especially in this case! 🙂


  3. Not being a lover of chocolate I think I would prefer the sourdough loaf which has a lovely texture

    Liked by 1 person

    1. 🙂
      Thank you, Derrick – a more versatile choice, too!


  4. That definitely looks worth a go. I’m neither vegetarian or vegan, but increasingly, meat has all but disappeared from our diet. Cheese will definitely be the last to go. Perhaps this chocolate cake might hit the spot instead? 😉

    Liked by 1 person

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