If you’ve never tried a Sourdough Cloud Cake Recipe, you’re in for a delightful surprise. This cake is incredibly light, soft, and airy—just like a fluffy cloud. The sourdough starter adds a subtle richness and depth of flavor without making the cake taste sour. It’s the perfect way to use up extra sourdough starter while creating a beautiful homemade dessert.
The first time I baked this cake, I couldn’t believe how soft and delicate it turned out. Every bite felt light, moist, and slightly buttery, making it an instant favorite in my home. Whether you’re baking for a birthday, afternoon tea, or simply treating yourself, this recipe is easy enough for beginners and impressive enough for guests.
This Sourdough Cloud Cake Recipe uses simple pantry ingredients and creates a bakery-quality cake that’s perfect on its own or topped with fresh fruit and whipped cream.
Why You Will Love This Recipe
There are so many reasons to make this delicious cake:
- Super light and fluffy texture.
- A wonderful way to use sourdough discard or active starter.
- Easy recipe with simple ingredients.
- Perfect for birthdays, tea parties, or family desserts.
- Delicious with fruit, whipped cream, or a light glaze.
Ingredients
For the Cake
- 2 cups (250g) cake flour
- ½ cup (120g) sourdough discard or active sourdough starter
- 1 cup (200g) granulated sugar
- 4 large eggs, separated
- ½ cup (120ml) whole milk
- ¼ cup (60g) unsalted butter, melted
- 1 teaspoon vanilla extract
- 1 teaspoon baking powder
- ¼ teaspoon baking soda
- ¼ teaspoon salt
- ½ teaspoon cream of tartar (optional, helps stabilize egg whites)
Optional Toppings
- Powdered sugar
- Fresh strawberries
- Blueberries
- Whipped cream
- Lemon zest
Step-by-Step Instructions
Step 1: Prepare the Oven
Preheat your oven to 325°F (165°C).
Grease and line an 8-inch round cake pan with parchment paper.
Step 2: Mix the Wet Ingredients
In a large bowl, whisk together:
- Sourdough discard
- Milk
- Melted butter
- Vanilla extract
- Egg yolks
Mix until smooth.
Step 3: Combine the Dry Ingredients
In another bowl, whisk together:
- Cake flour
- Baking powder
- Baking soda
- Salt
Gradually add the dry ingredients to the wet mixture and stir until just combined.
Do not overmix.
Step 4: Whip the Egg Whites
In a clean mixing bowl, beat the egg whites with the cream of tartar until soft peaks form.
Slowly add the sugar while beating until stiff, glossy peaks develop.
This step creates the signature cloud-like texture.
Step 5: Fold the Batter
Gently fold one-third of the whipped egg whites into the batter.
Then carefully fold in the remaining egg whites using a spatula.
Mix slowly to keep as much air in the batter as possible.
Step 6: Bake
Pour the batter into the prepared cake pan.
Smooth the top gently.
Bake for 35–40 minutes, or until the top is lightly golden and a toothpick inserted into the center comes out clean.
Step 7: Cool
Allow the cake to cool in the pan for 10 minutes.
Transfer it to a wire rack and let it cool completely before decorating.
Dust with powdered sugar or add your favorite toppings before serving.
Pro Tips & Variations
These tips will help you create the perfect Sourdough Cloud Cake Recipe every time.
Use Room Temperature Ingredients
Room temperature eggs and milk mix more smoothly and help create a lighter cake.
Fold Gently
Don’t stir the whipped egg whites too aggressively. Gentle folding keeps the batter airy.
Use Cake Flour
Cake flour creates a softer, finer crumb than all-purpose flour.
Flavor Variations
Try adding:
- Lemon zest
- Orange zest
- Almond extract
- Fresh blueberries
- Chocolate chips
- Coconut flakes
Common Mistakes to Avoid
- Overmixing the batter.
- Using cold eggs.
- Opening the oven too early.
- Overbaking the cake.
Health Benefits
While this cake is a sweet treat, it also has a few advantages over many store-bought desserts.
- Uses homemade sourdough starter with natural fermentation.
- Contains no artificial preservatives.
- You control the amount of sugar and ingredients.
- Eggs provide protein and important nutrients.
- Homemade baking encourages fresh, wholesome ingredients.
Enjoy this cake as part of a balanced lifestyle.
Serving Suggestions
This cake tastes wonderful served:
- With fresh berries
- Topped with whipped cream
- Drizzled with lemon glaze
- Alongside hot coffee
- With afternoon tea
- As a birthday cake
- With vanilla ice cream
- As a light spring or summer dessert
Its delicate texture makes it suitable for almost any special occasion.
Storage Tips
Room Temperature
Store in an airtight container for 2 days.
Refrigerator
Keep refrigerated for up to 5 days.
Allow slices to come to room temperature before serving for the best texture.
Freezer
Wrap individual slices tightly in plastic wrap and place them in a freezer-safe bag.
Freeze for up to 3 months.
Thaw overnight in the refrigerator before enjoying.
Frequently Asked Questions (FAQs)
Can I use sourdough discard instead of active starter?
Yes! This recipe works well with either active sourdough starter or unfed sourdough discard.
Why is my cake dense?
A dense cake usually means the egg whites were overmixed into the batter or the batter was stirred too much.
Can I make this cake ahead of time?
Absolutely. Bake it a day in advance and store it in an airtight container until ready to serve.
Can I add fruit to the batter?
Yes. Fresh blueberries, raspberries, or finely diced strawberries make wonderful additions.
Is this cake very sweet?
No. It has a light sweetness that pairs beautifully with fresh fruit, whipped cream, or a simple dusting of powdered sugar.
Conclusion
This Sourdough Cloud Cake Recipe is the perfect combination of light texture, delicate sweetness, and homemade comfort. The sourdough starter adds subtle richness while keeping the cake wonderfully moist and fluffy.
Whether you’re using up sourdough discard or simply looking for a unique homemade dessert, this Sourdough Cloud Cake Recipe is sure to become a favorite. Bake it for family gatherings, celebrations, or a cozy afternoon treat, and enjoy every soft, cloud-like bite. Happy baking!


