Quick Low Carb Gluten Free Keto Lemon Tiramisu
When you want a delicious low carb dessert that still fits your macros, this quick low carb keto lemon tiramisu will hit the spot! Less than 4 g net carbs and 12 grams of protein, plus authentic texture and bright lemon flavor!

Midlife Macros Friendly Lemon Tiramisu
If you’ve been following my recipes for any length of time, you know I love experimenting with low-carb desserts, keto desserts, and creative ways to turn classic Italian favorites into something that actually works for midlife bodies. This new creation might be one of my favorites yet.
Instead of using individual cakes or a sheet pan pancake recipe, I turned my lemon soufflé cake into a full 9 x 13 cake, sliced it into strips just like lady fingers, and used it as the soft sponge layer for a lemon tiramisu recipe. The result? A featherlight, creamy, perfectly balanced dessert that feels indulgent but still fits beautifully into a midlife macro approach.
This is not just another keto tiramisu recipe. It’s a smart, satisfying low-carb dessert that delivers incredible texture, bright lemon flavor, and that classic Italian dessert tiramisu experience—without the high fat or sugar crash.

Why Lemon Soufflé Cake Works So Well as a Sponge Cake
A traditional recipe for tiramisu relies on lady fingers or sponge cake layers dipped in a coffee soak while staying soft and delicate. The moment I sliced my individual lemon soufflé cake, I knew it was the perfect choice for a low-carb tiramisu.
Here’s why it works so well:
- The cake has a naturally creamy texture and perfect texture when baked properly
- It slices cleanly into single layer strips similar to homemade ladyfingers
- It stays tender even after chilling
- It absorbs flavor beautifully without turning soggy
Because this cake uses whole eggs, egg yolks, and beaten egg whites, and dried egg whites you get that classic airy structure similar to a traditional Italian sponge cake. When the whipped egg whites reach stiff peaks, they create lift without heaviness, which is key for tiramisu-style desserts.
This makes it a nice substitute for traditional lady fingers and a great option for anyone following a low‑carb diet, keto diet, or simply looking for a lighter dessert.

Turning a Lemon Cake into Lemon Tiramisu
Instead of a coffee liqueur soak or strong coffee used in traditional Italian tiramisu, this version leans into lemon flavor. Think bright, fresh, and slightly tangy—perfect for spring, dinner parties, or any special occasion.
The lemon elements come from:
- Lemon juice for brightness
- A light lemon syrup soak
- Optional lemon curd layered into the mascarpone mixture
- Garnishes like lemon slices or fresh berries
My lemon soufflé cake recipe that made individual servings now becomes the base, sliced into strips and layered just like coffee‑soaked savoiardi biscuits would be in a classic tiramisu. See the souffle cake recipe for swaps for the dried egg whites.

The Creamy Lemon Layer: Greek Yogurt + Cream Cheese Balance
For this version, I didn’t use heavy cream or whipped cream at all. Instead, I created a lighter, higher-protein layer using nonfat plain Greek yogurt combined with cream cheese, which turned out to be the perfect balance for a true midlife macro dessert.
This swap keeps the dessert creamy and satisfying without adding unnecessary fat, while still delivering that classic tiramisu-style richness.
What I Used Instead of Heavy Cream
- Nonfat plain Greek yogurt for protein and structure
- Cream cheese for richness and body
- Vanilla extract for flavor
- Monk fruit sweetener to keep it sugar free
When blended together in a large bowl using a hand mixer or electric mixer, the result is a smooth, lightly tangy cream with a beautifully creamy texture that pairs perfectly with the lemon sponge cake layers.

Why This Works So Well (Even Without Low‑Fat Cream Cheese)
I want to clarify something important here: while I used nonfat plain Greek yogurt, I did not use low‑fat cream cheese. I used regular American cream cheese.
Mascarpone cheese and cream cheese are actually closer nutritionally than many people realize. Mascarpone is slightly higher in fat, but both provide richness, structure, and mouthfeel. The key difference in this recipe is that pairing full‑fat cream cheese with nonfat Greek yogurt creates a balanced middle ground.
Here’s why this combination still works beautifully for midlife:
- Cream cheese provides the fat needed for satiety and flavor
- Greek yogurt adds protein and lightness
- The overall fat load is lower than a heavy‑cream‑based tiramisu
- Texture stays creamy, not dense or greasy
This approach supports a low‑carb diet and midlife macro goals without chasing ultra‑low‑fat swaps that often sacrifice satisfaction. You get enough fat to feel full, enough protein to stabilize blood sugar, and a dessert that still feels like the real thing.
Assembly Tips for Best Results
To assemble this lemon tiramisu using the soufflé cake:
- Bake the lemon soufflé cake in a 9 x 13 pan lined with parchment paper
- Allow the cake to cool completely
- Slice into strips similar in size to keto ladyfingers
- Lightly brush or spoon lemon syrup over each layer
- Spread an even layer of mascarpone cream
- Repeat layers, finishing with mascarpone on top
Cover with plastic wrap and chill for several hours or overnight. This resting time allows the flavors to meld and gives the dessert its signature structure

Texture, Flavor, and Why This Works for Midlife
One reason this classic dessert feels so satisfying is the balance. You get:
- Protein from eggs and dairy
- Moderate fat for satiety
- Lower carbs than traditional tiramisu
For women in midlife, a keto dessert recipe that combines protein and fat help stabilize blood sugar and reduce cravings. This is why this dessert works so well within a midlife macro framework and low carb diet or keto diet—it supports your goals instead of derailing them.
It’s indulgent enough to satisfy a sweet tooth, yet light enough that you don’t feel weighed down.
Variations and Fun Facts
- Layer in fresh berries for contrast
- Use a spring form pan for a more traditional presentation
- Try individual servings next time for dinner parties
Fun fact: Traditional tiramisu relies on raw eggs, often made using a double boiler to create a featherlight zabaglione. This version avoids raw eggs while still delivering that classic airy feel.
Storage and Make-Ahead Tips
This is my new favorite dessert and actually gets better with time. Store covered in the refrigerator for up to 4 days. The flavors deepen, and the cake layers stay soft without falling apart.
Sugar Free Lemon Keto Tiramisu Cake
Quick Low Carb Gluten Free Keto Lemon Tiramisu
Ingredients
Lemon Souffle Lady Fingers
- 6 eggs separated, room temperature
- 1 teaspoon white vinegar or cream of tartar
- 3/4 cup nonfat plain Greek yogurt
- 1/2 cup unflavored dried egg whites or see above for swaps
- 1 tbsp lemon juice and zest
- 2 tsp lemon stevia
- 2 teaspoons baking powder
- pinch salt
Lemon Cream Cheese Filling
- 12 ounces cream cheese or mascarpone
- 2 cups nonfat plain Greek yogurt
- 1/3 cup low carb powdered sweetener
- 2 tablespoons lemon juice and zest
- pinch salt
- 1 teaspoon lemon extract optional
- 1 teaspoon lemon liquid stevia optional
Lemon Syrup
- 1/4 cup water
- 1/4 cup lemon juice
- 1/4 cup low carb powdered sweetener
Instructions
Lemon Souffle Lady Fingers
- Preheat oven at 325 degrees F and place a silicone hamburger mold on top of a 9 by 13 baking sheet pan.
- Place your egg whites in a stand mixer with vinegar and whip until stiff peaks. This should take about 10-15 minutes. Set aside.
- Place the egg yolks in a large bowl with yogurt, lemon juice and then remaining ingredients and blend until incorporated and a smooth batter forms.
- Fold the stiff egg whites into the egg yolk mixture in 3 batches until it's all incorporated.
- Pour the batter into the 9 by 13 baking pan.
- Bake on the middle-lower rack for 40–45 minutes, rotating the pan once at about the 25-minute mark.
- The cake is done when the center is set, springs back lightly when touched, and a toothpick inserted into the center comes out clean or with a few moist crumbs (not wet batter).
- Remove from the oven and allow the cake to cool completely in the pan before lifting out or slicing. This step is essential for structure.Once fully cooled, slice the cake into strips resembling ladyfingers and set aside. I was able to make 30.
Lemon Cream Cheese Filling
- Place the cream cheese, Greek yogurt, powdered sweetener, lemon juice, zest and salt into a stand mixer with the paddle attachment or into a large bowl and using a hand electric mixer to blend until smooth.
- Taste mixture and decide if it's lemony enough. If not add the lemon extract. Also decide if you need any additional sweetener like the lemon stevia. Place in the fridge until ready to assemble.
Lemon Syrup
- In a small bowl or measuring cup, combine the water, lemon juice, and low-carb powdered sweetener.Whisk well until the sweetener is fully dissolved. (No heating needed—the powdered sweetener dissolves easily in the liquid.)Set aside and use to lightly brush or spoon over the lemon soufflé cake layers during assembly.Tip:This syrup is meant to gently moisten the cake, not soak it. A light hand keeps the layers soft but structured.
Assembly
- Choose an 8 by 8 serving dish or baking dish for assembly. This recipe makes three layers when assembled in an 8×8 square glass dish, creating a taller, more traditional tiramisu-style dessert.Place a single layer of the lemon soufflé cake strips on the bottom of the dish.Lightly brush with lemon syrup.Spread an even layer of the lemon cream cheese filling over the cake.Repeat layers—cake, syrup, cream—until all components are used, finishing with the cream layer on top.Cover and refrigerate for at least 4 hours, preferably overnight, to allow the layers to set and flavors to meld.Before serving, garnish if desired with lemon zest, sugar-free sprinkles, or a light dusting of powdered low-carb sweetener.
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I’m sorry, I can’t find the ‘swaps’ for the unflavored egg white protein powder
“1/2 cup unflavored egg white protein powder or see above for swaps”
I really can’t invest in that.
Thanks so much!
I would also like to know what to swap for the egg white protein powder.
You can swap with whey protein but it won’t have the same light, airy texture.
Hi Eileen,
You could swap with whey protein but it won’t be as light and airy sponge. The product I am using is dried egg whites here https://amzn.to/3O0O0QF so I am sure you could find another brand.
8 ounces of the egg white protein is $63…won’t be trying this recipe!!
Hi Pat, not sure what you’re looking at, but the link to the dried egg whites on Amazon from my recipe is Judee’s brand here https://amzn.to/3O0O0QF and it is $23.00 for 11 ounces.