I’ll never forget the first time I made this sugar-free strawberry mascarpone cake for a summer gathering. My friend – who’d sworn off desserts for months – took one bite and her eyes lit up. “This can’t be low-carb!” she exclaimed. That’s the magic of this recipe – it lets you indulge without guilt. After years of tweaking low-carb baking, I’ve found the perfect balance between rich, creamy mascarpone and fresh strawberries with just the right crumb. No one will believe it’s sugar-free when they taste that first luscious bite. The best part? It comes together in less time than it takes to explain why you’re eating cake on a diet!
Why You’ll Love This Sugar Free Strawberry Mascarpone Cake
This isn’t just another diet dessert – it’s the cake that’ll make you forget you’re being “good.” Here’s why it’s a game-changer:
- Guilt-free indulgence: With only 8g net carbs per slice, you can have your cake and eat it too (literally!)
- Naturally sweet: Fresh strawberries and erythritol create perfect sweetness without sugar crashes
- Restaurant-quality flavor: The creamy mascarpone topping tastes decadent but stays low-carb
- Weeknight easy: Mixes up in one bowl and bakes in 30 minutes – no fancy skills needed
Trust me, this is the dessert you’ll make when you want something special that doesn’t wreck your diet.
Ingredients for Sugar Free Strawberry Mascarpone Cake
Here’s everything you’ll need to make this dreamy low-carb dessert. I’ve learned through trial and error that quality ingredients make all the difference!
- Dry ingredients:
- 1 1/2 cups almond flour (I prefer super-fine for the best texture)
- 1/2 cup coconut flour (don’t skip this – it balances the moisture)
- 1/2 cup granulated erythritol (my favorite sugar-free sweetener)
- 1 teaspoon baking powder (make sure it’s fresh!)
- 1/2 teaspoon salt (just a pinch to enhance all the flavors)
- Wet ingredients:
- 4 large eggs (room temperature – this matters!)
- 1/2 cup unsalted butter, melted (and slightly cooled)
- 1 teaspoon vanilla extract (the real stuff, not imitation)
- Toppings:
- 8 oz mascarpone cheese at room temperature (trust me, cold mascarpone won’t whip right)
- 1/4 cup heavy cream (for that dreamy cloud-like texture)
- 2 tablespoons powdered erythritol (or more to taste)
- 1 cup fresh strawberries, sliced (about 10 medium berries)
Ingredient Notes & Substitutions
Baking is personal, so here’s how to make this recipe your own:
- Flour swaps: All almond flour works (use 2 cups total), but the cake will be denser. For nut-free, try sunflower seed flour.
- Sweetener options: Monk fruit blend or allulose work instead of erythritol. Just avoid liquid stevia – it changes the texture.
- Dairy-free? Coconut cream can replace mascarpone (chill overnight first), and coconut oil substitutes for butter.
- Berry variations: Raspberries or blackberries taste fantastic too! Frozen berries work in a pinch (thaw and pat dry first).
See? Even with swaps, you can still make magic happen. The key is sticking to the measurements – low-carb baking is more precise than regular baking.
Equipment You’ll Need
Don’t worry – you won’t need any fancy gadgets for this sugar-free strawberry mascarpone cake. Just grab these basics from your kitchen:
- 8-inch cake pan (springform works great for easy removal)
- Mixing bowls (one large, one medium – I use my grandma’s old ceramic ones)
- Electric mixer (handheld is fine, but stand mixer makes whipping mascarpone a breeze)
- Spatula (for scraping every last bit of batter – no waste!)
- Measuring cups/spoons (low-carb baking needs precision)
- Wire rack (essential for cooling – impatient bakers beware!)
That’s it! No special tools required. Though I will confess – my strawberry slicer does make quick work of those berries when I’m feeling fancy.
How to Make Sugar Free Strawberry Mascarpone Cake
Alright, let’s get baking! This sugar-free strawberry mascarpone cake comes together in three simple stages. I’ve made this dozens of times, and I promise – if I can do it after my infamous “cake soup” incident, you’ll nail it too.
Preparing the Cake Batter
First things first – preheat that oven to 350°F (175°C). Grease your 8-inch cake pan really well (I use butter and a dusting of almond flour to prevent sticking). Now, let’s make magic:
In your large bowl, whisk together all the dry ingredients – almond flour, coconut flour, erythritol, baking powder, and salt. Get them nice and combined. In another bowl, beat the eggs lightly, then mix in the melted (but slightly cooled) butter and vanilla extract.
Here’s my trick: pour the wet ingredients into the dry ingredients gradually while stirring. The batter should be thick but pourable – like pancake batter with a bit more body. If it seems too thick (sometimes coconut flour drinks up moisture differently), add a tablespoon of almond milk. Too thin? A sprinkle more almond flour will fix it.
Baking & Cooling
Pour your beautiful batter into the prepared pan and smooth the top. Slide it into the oven and set your timer for 25 minutes – but don’t walk away! Ovens vary, so start checking at 25 minutes. The cake is done when it’s golden on top and a toothpick comes out with just a few moist crumbs (no wet batter).
This next part is crucial – let the cake cool completely in the pan on a wire rack. I know, I know – waiting is hard when your kitchen smells like vanilla and butter. But if you frost it warm, you’ll have mascarpone soup (learned that the messy way). About 45 minutes should do it.
Assembling the Cake
While the cake cools, make your cloud-like topping. In a chilled bowl, beat the mascarpone and powdered erythritol until smooth. Slowly add the heavy cream and keep beating until fluffy peaks form – about 2-3 minutes with an electric mixer. Taste it! Need more sweetness? Add another teaspoon of erythritol.
Now the fun part: spread the whipped mascarpone over your cooled cake like you’re frosting the world’s best cloud. Arrange those fresh strawberry slices however you like – I do concentric circles starting from the outside. Pro tip: pat the berries dry first so they don’t make the topping watery.
And voila! You’ve just made a showstopping dessert that looks like it came from a fancy bakery but is secretly guilt-free. The hardest part now? Waiting 10 minutes before slicing so the flavors can settle (but no judgment if you sneak a strawberry first).
Tips for Perfect Sugar Free Strawberry Mascarpone Cake
After making this cake more times than I can count (and yes, surviving a few kitchen disasters), here are my foolproof tips for absolute perfection every single time:
- Temperature matters most: Use room-temperature eggs and mascarpone – cold ingredients don’t blend properly. I leave mine out for 30 minutes before starting. If you forget (we’ve all been there), place eggs in warm water for 5 minutes and microwave mascarpone at 30% power for 10-second bursts.
- Slice berries like a pro: Cut strawberries into even ¼-inch slices using a sharp knife. Thick slices slide off, too thin ones disappear into the topping. My trick? Slice off the green top, stand the berry upright, and make vertical cuts from top to bottom.
- Mix with a light hand: Overmixing low-carb batter makes tough cakes. Stir just until the flour disappears – a few small lumps are okay! For the mascarpone topping, stop beating as soon as stiff peaks form (overbeating makes it grainy).
- The patience payoff: Letting the cake cool completely is non-negotiable. I set a timer for 45 minutes – touching it early causes the topping to melt into sad puddles. But here’s my secret: the flavors actually get better if you refrigerate it for 2 hours before serving!
Remember my “cake soup” story? These tips are how I turned that kitchen fail into my proudest dessert. Now go forth and bake with confidence!
Serving & Storage
Here’s the best way to enjoy your sugar-free strawberry mascarpone cake – and how to keep it tasting fresh (if there are any leftovers, that is!):
Serving tips: This cake absolutely shines when served chilled. After assembling, I like to pop it in the fridge for at least an hour before slicing – the flavors meld together beautifully, and the mascarpone sets up perfectly. Use a sharp knife dipped in hot water for clean slices. My favorite way to serve? With an extra sprinkle of powdered erythritol and maybe a fresh mint leaf for garnish. It makes it look so fancy!
Storage: Cover the cake loosely with plastic wrap or store in an airtight container in the refrigerator. It’ll keep wonderfully for up to 3 days – though in my house, it never lasts that long! The strawberries might release a little juice over time, but that just makes each bite more delicious.
One important note: I don’t recommend freezing this cake. The mascarpone topping can become grainy when thawed, and the strawberries turn mushy. It’s so quick to make fresh that I promise it’s worth waiting until you’re ready to enjoy it immediately!
Sugar Free Strawberry Mascarpone Cake Nutrition
I know what you’re thinking – “How can something this delicious actually be good for me?” Well, let’s break it down. These nutrition facts might just make you do a happy dance (I definitely did when I first calculated them!). But remember – exact numbers can vary slightly based on your specific ingredients and how big you slice that cake.
Here’s what you’re getting in each generous slice of this sugar-free strawberry mascarpone cake:
- Calories: 280 (compared to 400+ in traditional strawberry cake!)
- Total Carbs: 8g
- Fiber: 4g (that means only 4g net carbs – woohoo!)
- Protein: 7g (from all those eggs and almond flour)
- Fat: 24g (the good kind from almonds, butter, and mascarpone)
- Sugar: Just 3g (all natural from the strawberries)
The best part? Unlike regular cake that sends your blood sugar on a rollercoaster, this version keeps you satisfied without the crash. I’ve had friends following keto who’ve told me this dessert actually kept them in ketosis – now that’s what I call a win!
Quick note: These values are estimates based on the exact ingredients I use. Your numbers might vary slightly depending on your almond flour brand, strawberry size, or if you decide to add an extra dollop of that heavenly mascarpone (no judgment here!).
FAQ About Sugar Free Strawberry Mascarpone Cake
After making this cake for years (and answering countless texts from friends mid-baking crisis), here are the questions I get asked most often – with all the answers you need for success!
Can I use frozen strawberries instead of fresh?
You sure can! Just thaw them completely first and pat them dry with paper towels – frozen berries release way more liquid than fresh ones. I actually keep a bag of frozen strawberries in my freezer for cake emergencies (we’ve all been there!). Slice them while still slightly frozen for cleaner cuts.
Is erythritol absolutely necessary?
Not at all! While erythritol is my favorite for this recipe, you can use other sugar-free sweeteners. Monk fruit blend works beautifully and has no aftertaste. Allulose makes the cake extra moist. Just avoid liquid stevia – it makes the texture weirdly dense. And whatever you do, don’t skip the sweetener entirely – the cake will taste bland!
Why did my mascarpone topping turn runny?
Oh honey, I’ve been there! Usually it’s one of three things: 1) Your mascarpone wasn’t cold enough (it whips best when chilled), 2) You overbeat it (stop as soon as stiff peaks form), or 3) The cake wasn’t completely cooled before frosting. If disaster strikes, pop the whole cake in the fridge for an hour – it’ll firm right up!
Can I make this cake ahead of time?
Absolutely! In fact, it tastes even better the next day. Bake the cake up to 24 hours in advance (wrap cooled cake tightly in plastic). Make the mascarpone topping separately and refrigerate it in an airtight container. Assemble with strawberries just before serving – this keeps everything fresh and prevents soggy berries.
What’s the best way to slice strawberries for the top?
After years of trial and error (and some lopsided cakes), here’s my foolproof method: First, remove the green tops. Then stand each berry upright and make vertical slices from top to bottom – about 1/4 inch thick. This gives you those beautiful, even fan shapes that make the cake look professionally decorated. Pro tip: use slightly underripe berries – they hold their shape better!
Share Your Thoughts!
I’d love to hear how your sugar-free strawberry mascarpone cake turned out! Did you add your own twist? Maybe a splash of lemon zest in the mascarpone or different berries on top? Every time someone makes this recipe, they seem to put their own delicious spin on it – that’s what makes home baking so special.
Leave a note below about your experience – your tips might help the next baker avoid a kitchen mishap (we’ve all had them!). Did your family react the same way mine did when they realized it was low-carb? I still giggle remembering my nephew’s shocked face when I told him there was no sugar in his second slice.
If you snapped a photo of your masterpiece, I’d be over the moon to see it! There’s nothing more satisfying than seeing those layers of golden cake, fluffy mascarpone, and ruby-red strawberries arranged just right. Whether it’s your first low-carb dessert or your hundredth, your story matters. Happy baking, friends!
Print
8g Net Carb Sugar Free Strawberry Mascarpone Cake – Heavenly Low Carb Treat
- Total Time: 45 minutes
- Yield: 8 servings 1x
- Diet: Low Calorie
Description
A delicious sugar-free strawberry mascarpone cake that’s low in carbs, perfect for those watching their sugar intake.
Ingredients
- 1 1/2 cups almond flour
- 1/2 cup coconut flour
- 1/2 cup granulated erythritol
- 1 tsp baking powder
- 1/2 tsp salt
- 4 large eggs
- 1/2 cup unsalted butter, melted
- 1 tsp vanilla extract
- 1 cup fresh strawberries, sliced
- 8 oz mascarpone cheese
- 1/4 cup heavy cream
- 2 tbsp powdered erythritol
Instructions
- Preheat oven to 350°F (175°C). Grease an 8-inch cake pan.
- In a bowl, mix almond flour, coconut flour, erythritol, baking powder, and salt.
- Add eggs, melted butter, and vanilla extract. Stir until smooth.
- Pour batter into the pan and bake for 25-30 minutes until golden.
- Let the cake cool completely.
- Whip mascarpone, heavy cream, and powdered erythritol until fluffy.
- Spread the mascarpone mixture over the cake and top with strawberries.
Notes
- Store in the refrigerator for up to 3 days.
- Use room-temperature ingredients for best results.
- Adjust sweetness to taste.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: International
Nutrition
- Serving Size: 1 slice
- Calories: 280
- Sugar: 3g
- Sodium: 150mg
- Fat: 24g
- Saturated Fat: 12g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 8g
- Fiber: 4g
- Protein: 7g
- Cholesterol: 120mg

