Keto Lemon Pound Cake
There are some cakes that feel like sunshine, and this Keto Lemon Pound Cake is definitely one of them.
It’s buttery, tender, lightly sweet, and filled with fresh lemon flavor. The texture is rich like a traditional pound cake, but without all the sugar and regular flour.
I first made this on a weekend when I was craving something sweet with my afternoon coffee. I had a few lemons sitting in the kitchen, and instead of making cookies or reaching for a store-bought dessert, I decided to experiment with a keto-friendly pound cake.
The smell while it baked was incredible.
That fresh lemon aroma filled the whole kitchen, and my family kept asking when they could have a slice. Once it cooled, I added a simple lemon glaze and sliced it up.
Everyone loved it.
Since then, this has become one of those recipes I make when I want a little treat that feels homemade and special. It’s especially lovely with coffee or tea, and the lemon flavor makes it perfect for spring and summer—but honestly, I make it whenever I have fresh lemons.
Prep Time: 15 minutes
Cook Time: 45–55 minutes
Total Time: About 1 hour 10 minutes
Servings: 10–12 slices
Why You’ll Love This Keto Lemon Pound Cake
Bright, fresh lemon flavor
Tender and buttery texture
Low in carbohydrates
Easy to make
Perfect with coffee or tea
Great for brunch or dessert
No regular flour or refined sugar
Freezer-friendly
Ingredients
For the Cake
2 cups almond flour
¼ cup coconut flour
¾ cup powdered keto-friendly sweetener
1 teaspoon baking powder
¼ teaspoon salt
½ cup unsalted butter, softened
4 large eggs, room temperature
¼ cup sour cream
2 tablespoons fresh lemon juice
1 tablespoon finely grated lemon zest
1 teaspoon vanilla extract
For the Lemon Glaze
½ cup powdered keto-friendly sweetener
1–2 tablespoons fresh lemon juice
½ teaspoon lemon zest
Add the lemon juice gradually until you reach your desired glaze consistency.
Instructions
Step 1: Prepare the Pan
Preheat your oven to 175°C (350°F).
Grease a standard loaf pan and line it with parchment paper, leaving some paper hanging over the sides for easy removal.
Step 2: Combine the Dry Ingredients
In a medium bowl, whisk together the almond flour, coconut flour, baking powder, and salt.
Set aside.
Step 3: Cream the Butter and Sweetener
In a large mixing bowl, beat the softened butter and powdered sweetener until light and creamy.
This usually takes about 2–3 minutes.
Step 4: Add the Eggs
Add the eggs one at a time, mixing well after each addition.
Add the sour cream, lemon juice, lemon zest, and vanilla extract.
Mix until smooth.
Step 5: Add the Dry Ingredients
Gradually add the dry ingredients to the wet mixture.
Mix just until everything is combined.
Don’t overmix the batter.
The batter will be fairly thick, which is normal for a pound cake.
Step 6: Fill the Pan
Spoon the batter into the prepared loaf pan.
Smooth the top with a spatula.
Step 7: Bake
Bake for approximately 45–55 minutes, or until the top is golden and a toothpick inserted into the center comes out mostly clean.
If the top starts browning too quickly, loosely cover the cake with foil during the final part of baking.
Step 8: Cool Completely
Let the cake cool in the pan for about 15 minutes.
Use the parchment paper to carefully lift it out.
Allow it to cool completely on a wire rack before glazing.
This is important because keto cakes can be delicate while they’re still warm.
Step 9: Make the Lemon Glaze
Place the powdered sweetener in a small bowl.
Add lemon juice a little at a time, whisking until smooth.
Stir in the lemon zest.
Drizzle the glaze over the cooled cake.
Allow it to set for several minutes before slicing.
My Best Tips
Use Fresh Lemon
Fresh lemon juice and zest give this cake a much brighter flavor than bottled lemon juice.
Don’t Skip the Zest
The zest contains concentrated lemon oils and adds a huge amount of flavor without adding much carbohydrate.
Bring Ingredients to Room Temperature
Room-temperature eggs, butter, and sour cream blend together more smoothly and help create a better texture.
Don’t Overbake
Almond flour cakes can become dry if they’re baked too long. Start checking the cake around the 45-minute mark.
Let It Cool Completely
I know it’s tempting to slice it while it’s warm, but keto cakes firm up considerably as they cool.
Delicious Variations
Lemon Blueberry Pound Cake
Fold a small amount of fresh or frozen blueberries into the batter. Keep in mind that this will increase the carbohydrate content.
Lemon Poppy Seed Cake
Add 1–2 tablespoons of poppy seeds to the batter.
Cream Cheese Lemon Pound Cake
Replace part of the sour cream with softened cream cheese for an extra-rich texture.
Coconut Lemon Cake
Add unsweetened shredded coconut for a tropical twist.
Raspberry Lemon Cake
Add a few fresh raspberries to the batter and finish with lemon glaze.
What to Serve with Keto Lemon Pound Cake
This cake is delicious with:
Coffee
Black tea
Green tea
Whipped cream
Fresh berries
Keto vanilla ice cream
Cream cheese frosting
A dollop of Greek yogurt
For a simple afternoon treat, I love a thin slice with a hot cup of coffee.
Make-Ahead Instructions
This cake is excellent for making ahead.
Once completely cooled, wrap it tightly and store it at room temperature for about 2 days, or refrigerate it for longer storage.
If refrigerated, let it sit at room temperature for a little while before serving for the best texture.
Freezing Instructions
You can freeze the cake either whole or in individual slices.
Wrap each slice tightly in plastic wrap and place the slices in a freezer-safe container or bag.
Freeze for up to 2–3 months for best quality.
Thaw overnight in the refrigerator or at room temperature.
For the best results, add the glaze after thawing.
Nutritional Information
Approximate per slice, assuming 12 slices:
Calories: 235
Protein: 7g
Fat: 21g
Total Carbohydrates: 6g
Fibre: 3g
Net Carbohydrates: 3g
Nutrition values are estimates and will vary depending on the sweetener and specific ingredients used.
Frequently Asked Questions
Can I use coconut flour instead of almond flour?
Not in an equal amount. Coconut flour absorbs much more liquid than almond flour, so the recipe would need to be reformulated.
Can I use a different keto sweetener?
Yes. Powdered erythritol, monk fruit blends, allulose, or another baking-friendly sweetener can work. Sweetness and texture may vary between brands.
Why did my pound cake sink?
This can happen if the cake is underbaked, the batter is overmixed, or the oven temperature is inaccurate. Make sure the center is fully set before removing it from the oven.
How do I make the cake more lemony?
Add extra finely grated lemon zest. It’s one of the easiest ways to intensify the lemon flavor without adding much liquid.
Can I make this without the glaze?
Absolutely. The cake is delicious on its own, especially with a little butter or whipped cream.
Is this cake keto?
The recipe is designed to be low in carbohydrates, but the exact amount depends on the ingredients and sweetener used. Check your specific products and portion size if you’re following a strict ketogenic plan.
Final Thoughts
This Keto Lemon Pound Cake is one of those desserts that makes a simple afternoon feel a little more special.
I love that first bite—the buttery cake, the bright lemon zest, and that sweet-tart glaze coming together all at once.
It’s the kind of cake I can make for my family without feeling like I’m spending hours in the kitchen, and it always makes the house smell wonderful.
Whether you’re serving it for brunch, enjoying a slice with coffee, or simply craving something lemony after dinner, this little pound cake is a keeper.
Sometimes all you need is a fresh lemon and a quiet afternoon to make something really delicious. 🍋💛