Sourdough Discard Lemon Cake: A Bright and Cozy Treat
Ah, there’s something absolutely magical about a sunny afternoon spent baking in the kitchen! The uplifting aroma of fresh lemons mingling with the creamy, comforting scent of butter has a way of whisking me back to my childhood. I remember my grandmother standing at the counter, zesting lemons with warmth and joy, never failing to sprinkle a pinch of love into every batter she created. Today, I want to share with you a gem of a recipe that not only captures that vibrant essence but also helps you make the most of your sourdough starter—this delightful Sourdough Discard Lemon Cake!
Perfect for any occasion, whether it be a sun-drenched afternoon picnic or a cozy family gathering, this cake is incredibly easy to whip up. You’ll love how the sourdough discard gives each slice a tender crumb while bursting with bright lemon flavor. This is one you’ll definitely want to pin for later!
Why You’ll Love This Recipe
- Uses Up Sourdough Discard: No more waste! This cake helps you utilize your sourdough discard, making it an eco-friendly choice.
- Lemon Freshness: The zesty lemon flavor brings a refreshing brightness that dances on your palate, perfect for spring and summer baking.
- Simple and Quick: With straightforward steps, you can have this cake baking in no time, making it a hassle-free recipe.
- Moist and Tender: Thanks to the combination of sourdough discard and buttermilk, every slice is moist and has a tender crumb.
- Drizzled Glaze: The sweet and tangy glaze adds that extra special touch, making this cake irresistible to friends and family.
Gather These Simple Ingredients
To create this delightful Sourdough Discard Lemon Cake, you’ll need the following ingredients:
- 1 cup sourdough discard
- 1 cup sugar
- 1/2 cup unsalted butter, softened
- 2 large eggs
- 1 cup all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 cup buttermilk
- Zest of 1 lemon
- 1/4 cup fresh lemon juice
- 1 cup powdered sugar (for glaze)
- 2-3 tablespoons lemon juice (for glaze)
Let’s Make It Together
- Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan.
- In a large mixing bowl, cream together the butter and sugar until light and fluffy, around 3-4 minutes.
- Add the eggs one at a time, mixing well after each addition to ensure they are fully incorporated.
- Stir in the sourdough discard, lemon zest, and lemon juice until everything is well combined, and the mixture is smooth.
- In a separate bowl, whisk together the flour, baking powder, baking soda, and salt until there are no lumps.
- Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk. Mix until just combined but be careful not to overmix!
- Pour the batter into the prepared pan and smooth the top with a spatula.
- Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Let the cake cool in the pan for about 10 minutes, then transfer it to a wire rack to cool completely.
- For the glaze, mix the powdered sugar with lemon juice until smooth, then drizzle over the cooled cake, creating tempting rivers of lemon goodness.
Fun Ways to Customize It
Here are a few delicious variations you might like to try to make this cake your own:
- Berry Bliss: Add a cup of fresh blueberries or raspberries to the batter for a fruity twist that complements the lemon beautifully.
- Nutty Crunch: Fold in chopped walnuts or pecans for a lovely crunch and earthy flavor that pairs well with citrus.
- Lavender Lemon: Add a teaspoon of dried culinary lavender to the batter for a fragrant floral note that elevates this cake to a whole new level.
- Cream Cheese Frosting: For an indulgent touch, consider topping the cake with a light cream cheese frosting instead of the lemon glaze.
Chef Emma’s Helpful Tips
- Make-Ahead Advice: This cake is perfect for making ahead of time! Wrap it tightly in plastic wrap and store it in the refrigerator for up to 3 days before serving.
- Ingredient Swaps: If you don’t have buttermilk, you can create a quick substitute by mixing 1/2 cup of milk with 1/2 tablespoon of vinegar—let it sit for a few minutes before using!
- Slicing Tip: For clean cuts, dip your knife in warm water before slicing; it’ll glide through the cake beautifully without pulling away from the crumb.
- Storage Suggestions: Store any leftover cake in an airtight container at room temperature for up to 2 days or in the fridge for up to a week.
Nutrition Information per Serving
- Serving Size: 1 slice
- Calories: 220
- Carbohydrates: 32g
- Sugar: 18g
- Fat: 9g
- Protein: 3g
- Sodium: 150mg
Frequently Asked Questions
Can I make this ahead?
Absolutely! You can make it a day in advance and store it in an airtight container at room temperature.
Can I use different ingredients?
Yes, feel free to substitute with gluten-free flour for a gluten-free option or adjust the sugar amount to taste.
How do I store leftovers?
Store leftovers tightly covered in an airtight container at room temperature for up to 2 days or refrigerated for a week.
How long does it last?
This cake stays fresh for about 3-5 days when stored properly. Just be sure to keep it sealed!
Wrapping It Up
Baking this Sourdough Discard Lemon Cake is not just about making a delicious treat but also about cherishing those feelings of warmth and nostalgia that come with it. It’s a celebration of bright flavors and cozy moments, perfect for sharing with loved ones—or enjoying all by yourself with a cup of tea on a sunny afternoon.
Don’t forget to save this Sourdough Discard Lemon Cake to your Pinterest board so it’s ready when you need a cozy treat! Happy baking, my friends! 🌼🍰

Sourdough Discard Lemon Cake
- Total Time: 50 minutes
- Yield: 8 servings 1x
- Diet: Vegetarian
Description
A delightful cake that combines the brightness of fresh lemons with the tenderness of sourdough discard, perfect for any occasion.
Ingredients
- 1 cup sourdough discard
- 1 cup sugar
- 1/2 cup unsalted butter, softened
- 2 large eggs
- 1 cup all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1/2 cup buttermilk
- Zest of 1 lemon
- 1/4 cup fresh lemon juice
- 1 cup powdered sugar (for glaze)
- 2–3 tablespoons lemon juice (for glaze)
Instructions
- Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan.
- Cream together the butter and sugar in a large mixing bowl until light and fluffy, around 3-4 minutes.
- Add the eggs one at a time, mixing well after each addition.
- Stir in the sourdough discard, lemon zest, and lemon juice until well combined.
- Whisk together the flour, baking powder, baking soda, and salt in a separate bowl until there are no lumps.
- Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk. Mix until just combined.
- Pour the batter into the prepared pan and smooth the top with a spatula.
- Bake for 30-35 minutes, or until a toothpick inserted comes out clean.
- Let the cake cool in the pan for about 10 minutes, then transfer to a wire rack to cool completely.
- Mix the powdered sugar with lemon juice for the glaze and drizzle over the cooled cake.
Notes
This cake can be made ahead of time and stored tightly wrapped in the refrigerator for up to 3 days. For clean cuts, dip your knife in warm water before slicing.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 220
- Sugar: 18g
- Sodium: 150mg
- Fat: 9g
- Saturated Fat: 5g
- Unsaturated Fat: 2g
- Trans Fat: 0g
- Carbohydrates: 32g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 30mg



