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.

The Best Sourdough Chocolate Cake Recipe - Home Grown Happiness (8)
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

What is the best flour to use for sourdough starter? ›

All-purpose Flour

It strikes a perfect balance of softness and structure, making it an ideal choice for various recipes. Due to its wide availability and affordability, all-purpose flour is often my top recommendation for creating and maintaining a sourdough starter.

Can I feed my sourdough starter with all-purpose flour? ›

Here are some common flour options for feeding your sourdough starter: All-Purpose Flour: All-purpose flour, which is a blend of hard and soft wheat, is a popular choice for feeding sourdough starter. It provides a good balance of protein and starch, which promotes a healthy fermentation process.

Can I add apple cider vinegar to my sourdough starter? ›

Try adding a tablespoon of apple cider vinegar - new starters aren't very acidic, and the 'good' bacteria which we like the sour flavor of thrive in an acidic environment. Bumping up the acidity with apple cider vinegar or pineapple juice can help promote the 'good' bacteria you want.

How to make sourdough more sour? ›

More stretch and folds

Typically, people do about 3-5 stretch and folds in the process of making a loaf of sourdough bread. If you do 2-4 more of them, it helps produce a more sour dough.

What is the secret to a good sourdough starter? ›

Tips and Tricks To Making A Sourdough Starter

Consistent feedings of the starter at the same time every day will ensure proper starter growth. Temperature control the environment and the water for feeding. A moderate 80°F (26°C) is optimal. Be persistent!

What flour makes the most sour sourdough starter? ›

For more tang: Incorporate some rye flour and/or whole wheat flour early in the bread-making process, such as when feeding the mother culture and the preferment. Rye flour in particular will help your culture produce some acetic acid.

Do you have to discard sourdough starter every time you feed it? ›

It would be best if you discarded some portion of your starter each time you feed it unless you want to continue to let it grow. Eventually, you need to discard the used “food” (flour and water) that's been used to sustain your starter during the last fermentation period.

What happens if you add too much flour to sourdough starter? ›

The colony of wild yeast and bacteria inside your starter jar are fairly resilient, however, like most living things, they can be overfed. When you overfeed a sourdough starter you dilute the natural population of yeast and bacteria, making your sourdough culture weak and inactive.

Is distilled water good for sourdough? ›

Distilled water is a bad choice because the minerals that the bacteria need to do their thing have been removed. Just stick to filtered spring or purified water for your starter and bread baking.

Does pineapple juice help sourdough starter? ›

The pineapple juice may sound like a strange ingredient, but it is what makes this recipe work so well. The juice creates an acidic environment that prevents bad bacteria from taking over and causing spoilage during the fermentation period."

What does lemon juice do to sourdough starter? ›

Addition of lemon juice stimulated the production of lactic acid, acetic acid, and the buttery flavour compounds acetoin and diacetyl, because of citrate conversion, during the Type 2 and Type 3 sourdough productions.

Does yogurt help sourdough starter? ›

Using all natural plain yogurt when establishing a sourdough starter can lower the pH, creating an environment that discourages harmful bacteria and mold. The use of yogurt also encourages wild yeast to colonise much faster.

Why does my homemade sourdough not taste sour? ›

Using flours with more ash, or mineral, content, will yield more sour taste. If you can't get enough ash, adding a bit of whole wheat flour to your recipe, which is what is done with the 20% Bran Flour, will boost the sour of a bread. Conversely, using a lower ash flour will tend to produce a milder bread.

Does vinegar make sourdough more sour? ›

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.

What makes sourdough taste better? ›

The key taste compounds include salt, which is directly added to the dough, as well as acetic and lactic acid, produced during fermentation. After these experiments, they applied a technique called “unified flavor quantitation,” which was previously developed by Hofmann's team, to the sourdough bread.

What is the healthiest flour for sourdough bread? ›

Rye Flour

Compared to wholemeal flour, rye flour is said to be the most nutrient and amylase-dense option for a sourdough starter. Overall, it has a lower gluten protein content than wheat flour, which means that rye flour produces slack, sticky and dense doughs.

Is rye flour best for sourdough starter? ›

Whole wheat and rye flours provide more nutrients for your starter and ferment more actively, but working with rye flour makes starter maintenance easier than whole wheat. Rye provides increased fiber and nutrients similar to whole wheat flour, but because of its lower gluten amount it's much easier to stir.

What kind of flour do you use to dust sourdough? ›

The process couldn't be simpler: before baking, use a fine-meshed sifter to dust the top of the dough lightly with white flour. I use all-purpose white flour for dusting.

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