Introduction
If you’re looking for a dessert that perfectly balances zest and sweetness, look no further than the Keto Lemon Poppy Seed Cake with Blackberry Buttercream. This delightful cake is more than just a treat; it’s a celebration of flavors that caters to your low-carb lifestyle without sacrificing taste. The combination of bright lemon and crunchy poppy seeds creates a refreshing experience that’s elevated by the rich, creamy blackberry buttercream.
Imagine slicing into a moist, fluffy cake that not only satisfies your sweet tooth but also aligns with your health goals. For young professionals who love homemade food but are often pressed for time, this recipe offers a quick yet impressive dessert option. Not only is it easy to prepare, but it also yields a visually stunning result that is sure to impress friends and family at gatherings.
The best part? This keto-friendly cake is packed with wholesome ingredients, making it a guilt-free indulgence. With each bite, you’ll enjoy a blend of textures and flavors that leave you wanting more. Whether you’re celebrating a special occasion or simply treating yourself after a long week, this Keto Lemon Poppy Seed Cake with Blackberry Buttercream is the perfect choice. So, why not indulge in a slice today and savor the delightful fusion of flavors that it brings to your table?
Key Ingredients
Almond Flour
Almond Flour (1 ½ cups): This low-carb flour serves as the primary base for the cake, providing moisture and a nutty flavor. It’s also gluten-free, making it perfect for keto diets.
Coconut Flour
Coconut Flour (¼ cup): This flour adds a subtle sweetness and absorbs moisture, which helps balance the texture of the cake. A little goes a long way due to its absorbent nature.
Granulated Erythritol
Granulated Erythritol (½ cup): A popular sugar substitute, erythritol adds sweetness without the calories or carbs of traditional sugar, making it ideal for keto baking.
Poppy Seeds
Poppy Seeds (1 tablespoon): These tiny seeds bring a delightful crunch and a hint of nutty flavor to the cake, enhancing its overall texture.
Baking Powder
Baking Powder (1 teaspoon): This leavening agent helps the cake rise and achieve a light, fluffy texture, crucial for any successful cake recipe.
Baking Soda
Baking Soda (½ teaspoon): Working in tandem with baking powder, baking soda further aids in leavening and contributes to the cake’s tenderness.
Salt
Salt (¼ teaspoon): A small amount of salt enhances the flavors of the cake, balancing the sweetness and bringing out the lemony notes.
Eggs
Eggs (4 large): Eggs provide structure and moisture, helping to bind the ingredients together while also contributing to the cake’s richness.
Unsweetened Almond Milk
Unsweetened Almond Milk (½ cup): This dairy-free milk adds moisture without additional sugars, keeping the cake light and keto-friendly.
Fresh Lemon Juice
Fresh Lemon Juice (¼ cup): The juice gives the cake its distinct citrus flavor, making it refreshing and vibrant.
Lemon Zest
Lemon Zest (1 tablespoon): Adding zest enhances the lemon flavor, providing aromatic oils that brighten the cake’s taste.
Butter
Butter (½ cup, softened): Butter adds richness and moisture, lending a delightful texture to the cake.
Blackberry Buttercream
Blackberry Buttercream (2 cups): This luxurious frosting, made with fresh blackberries, not only adds sweetness but also a beautiful color and fruity flavor that complements the lemon cake perfectly.
This careful selection of ingredients ensures that the Keto Lemon Poppy Seed Cake with Blackberry Buttercream is not only delicious but also adheres to a low-carb lifestyle, making it a fantastic dessert choice for health-conscious individuals.
Why You’ll Love This Recipe
When it comes to desserts that are both delicious and healthy, the Keto Lemon Poppy Seed Cake with Blackberry Buttercream stands out as a top choice. This cake not only satisfies your sweet cravings but also aligns with a low-carb lifestyle, making it perfect for those who are health-conscious yet still want to indulge. The combination of zesty lemon and crunchy poppy seeds creates a delightful flavor profile that is refreshing and satisfying.
What makes this recipe even more appealing is its simplicity. With just a handful of wholesome ingredients, you can whip up a stunning dessert in under an hour. It’s ideal for young professionals who love homemade food but might be short on time. Plus, the vibrant blackberry buttercream not only adds a pop of color but also a luscious creaminess that perfectly complements the cake’s texture.
In just one bite, you’ll experience a moist, fluffy cake that feels indulgent without the guilt. Whether you’re hosting a gathering or simply treating yourself after a long day, this cake is sure to impress. So why not give it a try? You’ll love the way it makes your taste buds sing while keeping your dietary goals in check!
Variations
If you love the Keto Lemon Poppy Seed Cake with Blackberry Buttercream but are looking to switch things up, there are plenty of delicious variations to explore. This cake is versatile, and with just a few tweaks, you can create new flavor profiles that suit your taste.
Flavor Enhancements
One easy way to enhance the flavor is by adding different extracts. For instance, a splash of vanilla extract can add depth to the cake, while almond extract provides a unique twist. You could also experiment with different citrus fruits, such as lime or orange, for a refreshing change from the classic lemon.
Fruit Alternatives
While blackberries pair beautifully with the lemon flavor, consider using other berries like raspberries or blueberries to create a mixed berry buttercream. Each berry brings its unique sweetness and tanginess, making the frosting even more delightful.
Gluten-Free Options
If you’re looking to make the cake completely grain-free, swap out the almond flour for sunflower seed flour to avoid nuts. Just be mindful that this may alter the flavor slightly, so it’s a fun experiment to see which version you prefer.
These variations not only keep your baking exciting but also allow you to cater to different palates. So, don’t hesitate to get creative in the kitchen—your Keto Lemon Poppy Seed Cake with Blackberry Buttercream is just the canvas for your culinary artistry!

Cooking Tips and Notes
Baking the perfect Keto Lemon Poppy Seed Cake with Blackberry Buttercream is both an art and a science. Here are some essential tips to ensure your cake turns out beautifully every time.
Measuring Ingredients
Accurate measurements are crucial in baking, especially when working with alternative flours like almond and coconut. Use a kitchen scale for precision, or spoon the flour into measuring cups and level it off with a knife to avoid packing.
Achieving Moisture
To keep the cake moist, be careful not to overmix the batter once you combine the wet and dry ingredients. Overmixing can lead to a dense texture. Additionally, ensure your butter is softened but not melted; this helps in creating a light, airy batter.
Cooling and Frosting
Allow the cake to cool completely before frosting with blackberry buttercream. If you frost a warm cake, the buttercream may melt and slide off, ruining the presentation. For a neat finish, use an offset spatula to spread the frosting evenly.
For an extra touch, consider garnishing with fresh blackberries or a sprinkle of lemon zest on top of the buttercream. This not only enhances the visual appeal but also adds a burst of flavor.
These tips will help you create a stunning and delicious cake that will impress anyone you serve it to, making your baking experience enjoyable and satisfying.
Serving Suggestions
When it comes to enjoying your Keto Lemon Poppy Seed Cake with Blackberry Buttercream, the presentation can elevate the experience. Serve each slice on a simple white plate to let the vibrant colors shine through. A fresh garnish of mint leaves or a few whole blackberries can add a beautiful touch and enhance the flavor profile.
For a delightful pairing, consider serving the cake with a side of whipped coconut cream. This light and airy topping complements the richness of the buttercream while keeping the dessert keto-friendly. Alternatively, a cup of herbal tea or a refreshing glass of iced lemon water can accompany your cake perfectly, making it a splendid afternoon treat.
If you’re hosting a gathering, consider making mini versions of this cake in cupcake form. They are perfect for portion control and can be frosted individually, making them a hit at parties. This versatile cake can also be enjoyed as a breakfast treat or an afternoon snack, satisfying your sweet tooth without derailing your dietary goals.

Time Breakdown
When planning to make the Keto Lemon Poppy Seed Cake with Blackberry Buttercream, it’s helpful to know the time commitment involved.
Preparation
The preparation time for this delicious cake is about 15 minutes, allowing you to gather your ingredients and get the mixing started.
Cooking/Baking
Once you’ve prepared your batter, baking the cake will take approximately 25-30 minutes. Keep an eye on it to ensure it doesn’t overbake.
Total
In total, you can expect to spend around 45 minutes from start to finish. This quick baking time makes it an ideal choice for young professionals and homemade-food lovers looking for a satisfying dessert without a lengthy process.
Nutritional Facts
When enjoying a slice of Keto Lemon Poppy Seed Cake with Blackberry Buttercream, you can indulge guilt-free, as this dessert is designed with health in mind. Each serving contains approximately 250 calories, making it a satisfying yet low-calorie option for your sweet cravings.
In terms of macronutrients, the cake packs 22 grams of total fat, with 10 grams being saturated fat. It also offers a good balance of protein, with 6 grams per slice, and only 10 grams of total carbohydrates, which includes 5 grams of dietary fiber. This makes it an excellent choice for those following a ketogenic diet, allowing you to indulge without compromising your dietary goals.
With just 2 grams of sugars, this cake provides a delightful sweetness through the use of erythritol, ensuring you can enjoy dessert without the sugar rush. Whether you’re treating yourself or sharing with friends, this cake offers a deliciously satisfying experience that aligns with your health-conscious choices.
FAQ based on “People Also Ask” section
Can I make this cake dairy-free?
Yes, you can easily make the Keto Lemon Poppy Seed Cake dairy-free by substituting the butter with a dairy-free alternative, such as coconut oil or a plant-based butter. Additionally, ensure that your blackberry buttercream is also made with dairy-free ingredients.
How should I store leftovers?
Store any leftover cake in an airtight container in the refrigerator. It will stay fresh for up to a week. If you want to keep it longer, consider freezing individual slices wrapped in plastic wrap and then placed in a freezer-safe bag.
Can I use other sweeteners besides erythritol?
Absolutely! While erythritol is a great option for this recipe due to its low-carb profile, you can substitute it with other keto-friendly sweeteners like monk fruit sweetener or allulose. Just be sure to check the conversion ratio, as different sweeteners may have different sweetness levels.
How can I enhance the lemon flavor?
If you want a more pronounced lemon flavor in your cake, consider adding extra lemon zest or a splash more of lemon juice to the batter. This will brighten up the taste and give it a more refreshing quality.
Conclusion
The Keto Lemon Poppy Seed Cake with Blackberry Buttercream is not just a treat; it’s a delightful way to indulge in a low-carb dessert that doesn’t sacrifice flavor. With its moist texture and the zesty burst of lemon complemented by the creamy blackberry frosting, this cake is sure to become a favorite among homemade-food lovers.
Whether you’re celebrating a special occasion or simply enjoying a quiet evening at home, this cake brings a touch of elegance to any moment. Plus, it’s quick to prepare, making it an ideal choice for young professionals and busy individuals who appreciate homemade goodness without the hassle.
So why wait? Gather your ingredients, preheat your oven, and create this delicious cake that fits perfectly into your keto lifestyle. Don’t forget to share your creations with friends and family, and enjoy the compliments that come your way!
Print
Keto Lemon Poppy Seed Cake with Blackberry Buttercream
A deliciously moist keto-friendly cake featuring poppy seeds and topped with a creamy blackberry buttercream frosting.
- Total Time: 45 minutes
- Yield: 8 servings 1x
Ingredients
- 1 1/2 cups almond flour
- 1/4 cup coconut flour
- 1/2 cup granulated erythritol
- 1 tablespoon poppy seeds
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/4 teaspoon salt
- 4 large eggs
- 1/2 cup unsweetened almond milk
- 1/4 cup fresh lemon juice
- 1 tablespoon lemon zest
- 1/2 cup butter, softened
- 2 cups blackberry buttercream
Instructions
- Preheat the oven to 350°F (175°C) and grease a cake pan.
- In a bowl, whisk together the almond flour, coconut flour, erythritol, poppy seeds, baking powder, baking soda, and salt.
- In another bowl, beat the eggs, almond milk, lemon juice, and lemon zest until combined.
- Add the wet ingredients to the dry ingredients and mix until smooth.
- Fold in the softened butter until well combined.
- Pour the batter into the prepared pan and bake for 25-30 minutes.
- Let the cake cool completely before frosting with blackberry buttercream.
Notes
- For a stronger lemon flavor, add more lemon zest.
- Store leftovers in the refrigerator.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Keto
Nutrition
- Serving Size: 1 slice
- Calories: 250
- Sugar: 2g
- Sodium: 150mg
- Fat: 22g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 5g
- Protein: 6g
- Cholesterol: 100mg

