The Best Sourdough Chocolate Cake Recipe - Home Grown Happiness (2024)

ByElien

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This chocolate sourdough cake is filled with creamy chocolate frosting and topped with a rich chocolate ganache. It is the perfect way to use your sourdough discard starter and makes the best chocolate cake.

The Best Sourdough Chocolate Cake Recipe - Home Grown Happiness (1)

​Sourdough starter discard

This sourdough discard chocolate cake is the perfect recipe for using your excess sourdough starter! It’s a rich chocolate layer cake and makes a wonderful birthday cake or cake for any occasion.

The great thing aboutsourdough discard recipesis that you can save up all the starter discard in a jar in the fridge and use it when you want. Other sourdough starters discard recipes includepuff pastryandovernight sourdough pancakes.

Thissourdough cake recipedoesn’t rely on the yeast in the starter the way that sourdough breaddoes. It uses the acid produced by the Lactobacillus bacteria in the starter.

This starter hasn’t been fed in a while or passed its peak and is now very acidic. That’s not good forsourdough bread, but it’s great for this sourdough chocolate cake (orred velvet cake!) Don’t have a starter yet? Learn to make your own starter with thissourdough starter recipe.

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Ingredients

The actual amounts of the ingredients for this tender chocolate cake recipe are written in the recipe card at the bottom of this post. Here is a rundown of what you need.

  • Sugar – There’s a mixture of granulated and brown sugar for sweetness and moisture.
  • Large eggs – Eggs act as a binding agent, providing structure and stability. They also add moisture and fat.
  • Vanilla paste or good-quality vanilla extract – Vanilla adds depth of flavor, enhancing the chocolate.
  • Discard sourdough starter – The sourdough discard contributes a unique, slightly tangy flavor, balancing the sweetness of the cake. The acid in the starter creates a tender cake.
  • Vegetable oil. Oil creates a really moist cake. You could use light olive oil, liquid coconut oil, or neutral-tasting vegetable oil.
  • Salt – Enhances all the flavors.
  • All-purpose flour – The base of the cake.
  • Whole milk – Loosens the batter.
  • Cocoa powder (this can be natural cocoa powder or dutch processed cocoa powder)
  • Baking powder and baking soda – The leavening agents in the cake.
  • Hot coffee. I use instant espresso powder dissolved in boiling water. If you’re not a fan of coffee, don’t worry, you won’t taste it. The coffee helps to strengthen the chocolate flavor. If you want to leave it out, it can be substituted for hot water.

Fermented chocolate cake

Make the batter the night before and leave it to ferment in the fridge. This helps break down the starches in the flour and helps with digestion.Cover the bowl of cake batter tightly. This is an optional step.

Equipment

This sourdough chocolate cake is best baked in two 8-inch round cake pans. It can, however be baked in one larger pan and sliced in half, but it will bake more evenly when baked in two.

Method

Grease and line the cake pans with parchment paper.

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In a large mixing bowl, whisk together the flour, cocoa, salt, baking powder, and baking soda and set it aside.

In a separate bowl, whisk together the sourdough starter, eggs, vanilla, oil, milk, and sugars.

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Pour the wet ingredients into the flour mixture and fold gently for a minute before pouring over the hot coffee.

Mix the wet and dry ingredients briskly together but don’t over mix the batter.

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Pour the chocolate cake batter into the greased cake pans and bake until a skewer inserted into the center of the cakes comes out clean and the top of the cakes springs back when touched.

Let the cakes cool in the pan for 5 minutes before removing and placing them on a wire cooling rack to cool completely before frosting.

Frosting

In a bowl of a stand mixer fitted with a paddle attachment, beat the room-temperature butter until light and creamy.

Add the powdered sugar, cocoa powder, milk, vanilla, and salt to the butter.

Whisk on low speed to incorporate them, scraping the sides of the bowl as needed.Once incorporated, switch to medium-high speed and beat the mixture for another 1-2 minutes until it’s light and fluffy.

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Assembling

Switch to a rubber spatula and stir the buttercream in a spreading motion to smooth out some bubbles.

Spread ¼ of the buttercream on one cake round so it reaches the edges. Add the second cake round on top. Top this round with another ¼ buttercream and spread it out with an offset spatula.

Use the remaining buttercream to cover the edges of the cake, and use a dough scraper to smooth it out.

Chocolate ganache

The ganache topping is optional but adds a real decadent touch to the chocolate cake and it’s perfect for chocolate lovers.

Heat the cream in a small saucepan until just simmering. Take it off the heat and add in chopped chocolate. Let them melt, then stir them together until glossy.

Leave the ganache to cool and thicken before pouring it on the cake so it can spread in a thick layer.

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FAQS

Why use sourdough in a chocolate cake?

Sourdough starter adds a subtle tanginess to the cake, making the chocolate flavor more complex. Plus, it helps to leaven the cake, making it light and tender.

Can I use unfed sourdough discard for this cake?

Yes, unfed sourdough discard works perfectly for this recipe. It’s a great way to use up, discard and minimize waste.

How long can I store the cake?

Store at room temperature in an airtight container for 3-4 days or, in the fridge for about a week. It can also be frozen for up to 3 months. Just make sure to wrap it well to prevent it from drying out.

Variations

  • Sourdough Chocolate Orange Cake: Add the zest of an orange into the batter, and replace half of the milk with fresh orange juice. The citrus flavor pairs wonderfully with chocolate.
  • Sourdough Mocha Cake: Go heavier on the coffee to add mocha flavor. Add a tablespoon of instant coffee powder to the batter to give your cake a rich mocha flavor.
  • Chocolate raspberry cake: On the first layer of cake, spread out some of the frosting, then pipe a wide ring of frosting around the edge. Spoon in a layer of raspberry compote. Add the second layer of cake, and continue frosting with chocolate buttercream.
  • Sourdough Mint Chocolate Cake: Add 1/4 teaspoon peppermint extract to your cake batter and 1 teaspoon peppermint extract to the chocolate buttercream frosting.

Related recipes

Keen to make some other delicious recipes? Try this sourdough red velvet cake or other sourdough recipes that are not bread, like sourdough croissants or homemade sourdough waffles.

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The Best Sourdough Chocolate Cake Recipe - Home Grown Happiness (9)

Sourdough Chocolate Cake

Yield: 8 inch cake

Prep Time: 20 minutes

Cook Time: 30 minutes

Total Time: 50 minutes

This rich sourdough chocolate cake is the perfect way to use your sourdough discard starter.

Ingredients

Cake batter

  • 220g (1 3/4 cups*) all-purpose flour
  • 70g (3/4 cup) cocoa powder
  • 1/2 tsp salt
  • 1 tsp baking powder
  • 1 tsp baking soda
  • 2 large eggs
  • 1 tsp vanilla extract
  • 180g (3/4 cup) vegetable oil
  • 100g (1/2 cup) sourdough discard starter
  • 130g (2/3 cup) granulated sugar
  • 130g (2/3 cup) soft brown sugar
  • 240g (1 cup) milk
  • 120g (1/2 cup) hot strong coffee

Chocolate Buttercream

  • 226g (1 cup) butter, softened to room temperature
  • 300-375g (2 1/2-3 cups) powdered sugar
  • 30g (1/3 cup) cocoa powder
  • 1/2 teaspoon vanilla extract or paste
  • 2-3 Tbsp milk or cream at room temperature
  • 1/4 tsp salt

Chocolate Ganache

  • 125g (1/2 cup) pouring cream
  • 150g (5oz) semi-sweet chocolate, chopped

Instructions

  1. Preheat the oven to 180°C (350°F), grease, and line two 8-inch round cake pans.
  2. Mix the flour, cocoa powder, salt, baking powder, and baking soda in a large bowl. Set it aside.
  3. Whisk together the sourdough starter, eggs, vanilla, oil, milk, and sugars in a separate bowl.
  4. Pour the wet mixture into the flour mixture and fold gently for a minute before pouring over the hot coffee.
  5. Mix briskly together but don't over-mix.
  6. Pour into the prepared cake pans and bake for 25-30 minutes until a skewer inserted into the cakes comes out clean.

Chocolate Buttercream

  1. In a stand mixer bowl fitted with a paddle attachment, beat the room-temperature butter until light and creamy.
  2. Add the powdered sugar, cocoa powder, milk, vanilla, and salt to the butter.
  3. Whisk on low speed to incorporate them, scraping the sides of the bowl as needed.Once incorporated, switch to medium-high speed and beat the mixture for another 1-2 minutes until it's light and fluffy.

Chocolate Ganache

  1. In a small saucepan, heat the cream until just simmering. Take it off the heat and add the chopped chocolate.
  2. Leave it to sit for 5 minutes, then stir until it is glossy and all the chocolate has melted. Let it cool down until it thickens before pouring on the cake.

Notes

* The cup sizes given are US-sized cups. Note that these are smaller than metric. For best results, use a kitchen scale and grams.

The calorie count for this recipe is for one serving of sourdough chocolate cake. It does not include the frosting or ganachetopping.

The batter can be made the night before and left to ferment in the fridge. This helps with breaking down the starches in the flour.

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Nutrition Information:

Yield: 12Serving Size: 1 slice
Amount Per Serving:Calories: 300Total Fat: 16gSaturated Fat: 12gUnsaturated Fat: 0gCholesterol: 29mgSodium: 301mgCarbohydrates: 39gFiber: 2gSugar: 24gProtein: 4g

Elien

I'm Elien. I love baking, especially with sourdough, and I'm passionate about sharing my recipes with you! You will find me spending most of my days either recipe testing in the kitchen, photographing food in my living room, or out in the garden. I'm so happy to have you here!

The Best Sourdough Chocolate Cake Recipe - Home Grown Happiness (2024)

FAQs

Can you use regular flour for sourdough starter? ›

If you do not have whole wheat flour, just use all purpose flour instead. The starter will be fine. I switch to all purpose flour for the feedings because it's reliable, inexpensive and practical for everyday baking (remember, a portion of your starter is removed, discarded, or used for something else).

Can I feed my sourdough starter without discarding? ›

If you don't get rid of the excess, eventually you'll have more starter than your feedings can sustain. After a few days, your daily 1/4 cup flour and water won't be enough to sustain your entire jar of starter, and your starter will be slow and sluggish, not much better than discard itself.

Can you use apple cider vinegar in sourdough starter? ›

It is not unusual for the mixture to get very bubbly around Day 3 or 4 and then go completely flat and appear dead. If the mixture does not start to grow again by Day 6, add 1/4 tsp. apple cider vinegar with the daily feeding. This will lower the pH level a bit more and it should wake up the yeast.

Can you add lemon juice to sourdough starter? ›

Some people like to add a little bit of lemon juice to help the process along. My recommended proportions are below. Third, stir the mixture in the jar until it become a thick paste. Finally, repeat every 12 hours for about a week.

What is the best flour mix for sourdough starter? ›

Over the past decade-plus of baking, I've tested all manner of flour from whole grain wheat to spelt to einkorn, and while they all do work, my preferred flour to use when creating a sourdough starter is whole grain rye flour and white flour (this can be all-purpose or high-protein bread flour).

What type of flour is best for a sourdough starter? ›

Whole wheat flour is an excellent choice for creating a sourdough starter due to its nutrient-rich composition and potential for fostering a robust microbial community. However, it's important to note that the quality of whole wheat flour can vary between brands.

What happens if you don t discard half of sourdough starter? ›

Discarding some first allows you to add this fresh food, whilst maintaining your starter at a manageable size. Not discarding your starter will also affect the flavor of your starter. Not discarding before you feed will cause too much acidity which may eventually be detrimental to your microbes.

Why discard half sourdough starter? ›

One only needs to discard when making a starter from scratch because it needs daily feeds for a week or two before it's strong enough to make bread. If one doesn't discard then before long you'll have a swimming pool of starter.

When should you throw out a sourdough discard? ›

I recommend keeping sourdough discard for about one week, but I do know others who keep it for much longer. After one week, there is a higher risk of mold or bad bacteria growing on the discard.

Does pineapple juice help sourdough starter? ›

Start with pineapple juice because wild yeast cells prefer a somewhat acidic pH. Use freshly milled, stone-milled flour because the added minerals and nutrients provide even better food for the microbes (the yeast and bacteria) to thrive. If you have a source local to you, use it!

Why do you put baking soda in sourdough bread? ›

What does baking soda do to sourdough? because it reacts with the acid from the sourdough starter to create carbon dioxide gas, which provides leavening.

What does vinegar do to sourdough bread? ›

There are two main acids produced in a sourdough culture: lactic acid and acetic acid. Acetic acid, or vinegar, is the acid that gives sourdough much of its tang. Giving acetic acid-producing organisms optimal conditions to thrive and multiply will produce a more tangy finished product.

Is it OK to use tap water for sourdough starter? ›

*If making sourdough is new for you, do not be discouraged if you starter takes longer to get active than mine – stick with it, it will happen! *Tap water is usually fine, if you are not sure, use boiled and cooled water, you can use it at room temperature or cool; do not use distilled water.

Why do you spray sourdough with water before baking? ›

Wetting the dough causes the surface to steam. Covering it traps the moisture. This partnership stops the bread from drying out on the surface in the hot air of the oven and forming a premature crust. Your bread rises more and produces a richer colour, becoming glossy on the surface.

Should I use bottled water for sourdough starter? ›

What kinds of water should I use? While you can use distilled water, bottled water, or mineral water for your starter, regular tap water works just as well. However, if you have high chlorine levels in your water, fill a bottle with water and let it sit overnight to allow the chlorine to dissipate before baking.

Can I use plain flour instead of bread flour for sourdough? ›

That's a bit low for most sourdough breads, but it will work as long as you don't mind your bread being a bit dense. If you want that light crumb with irregular holes and great oven spring, AP flour won't give you that. All purpose flour is fine for quickbreads, if you want to go that route.

Do you use plain flour or self raising for sourdough? ›

While you can technically make a sourdough starter with self-rising flour, it's not the best choice and is generally not recommended. Self-rising flour contains baking powder and salt, ingredients that can inhibit the growth of the wild yeasts and bacteria needed to produce a healthy sourdough starter.

Can you make sourdough with alternative flours? ›

This will stiffen the dough for scoring and transfer, and possibly help it retain some height once it's out of the basket. It is fine to feed your sourdough starter any wheat flour (all purpose, bread, einkorn, rye, emmer…etc.) and probably many non-wheat flours. It's also fine to switch flours regularly.

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