Lemon Tiramisu: The Bright, Creamy No-Bake Dessert You Need
I stumbled across a lemon tiramisu on a food creator’s reel at 11pm — one of those videos where someone tilts a spoon and the filling holds, just barely. I made a note, forgot about it for two weeks, then couldn’t stop thinking about it. I tested three versions back to back over a single weekend. The results surprised me in ways I didn’t expect — and one thing I was sure would work completely failed.
This lemon tiramisu comes together in under 25 minutes of active time, needs no oven and no raw eggs, and sets overnight into clean, sliceable layers. You get a sharp citrus hit from real lemon curd balanced by a rich mascarpone cream — the kind of dessert that looks like you planned it for a dinner party even when you didn’t.
Pro Tip
The mistake most people make: dunking the ladyfingers too long in the soaking liquid. Even 3 extra seconds turns them to mush — and once they’re soggy, there’s no saving the structure. The fix is a single, decisive dip: hold each biscuit horizontally, dunk one side for one second, flip, one second on the other side, done. You want them damp on the outside and still slightly firm at the core — they’ll finish softening as the tiramisu chills overnight.
Mascarpone is now stocked in most large supermarkets — look near the specialty cheeses or the deli counter. For lemon curd, homemade takes 10 minutes and the flavour is noticeably sharper and less sweet than jarred. Limoncello adds depth to the soak, but a simple syrup of equal parts lemon juice and sugar (2 tbsp / 30ml each) works just as well for an alcohol-free version. Use full-fat heavy whipping cream — anything lighter won’t hold its peaks.
Lemon Tiramisu: The Bright, Creamy No-Bake Dessert You Need
8
servings25
minutes390
kcal6
hours6
hours25
minutesIngredients
1 cup heavy whipping cream (240ml), full-fat
9 oz mascarpone (250g), room temperature
3 tbsp white granulated or caster sugar (37g)
1 tsp pure vanilla extract
1 lemon, zested
24 ladyfinger biscuits / Savoiardi (approx. 7 oz / 200g)
½ cup limoncello OR lemon soaking syrup (120ml) — see note
¾ cup lemon curd (240g), homemade or store-bought
Directions
- Whip the cream. Using a hand mixer, beat the cold heavy cream to soft peaks — the cream should hold a gentle wave when you lift the beaters, not stand in stiff points. Stop early. Overwhipped cream turns grainy inside the filling and loses that silky pull when you spoon it out.
- Beat the mascarpone. In a separate bowl, beat together the mascarpone, sugar and vanilla until smooth and just holding shape, then stir in the lemon zest. Cold mascarpone can split — let it sit at room temperature for 15 minutes before beating.
- Fold the two together. Add one-third of the whipped cream to the mascarpone and fold gently with a spatula, then repeat twice with the remaining cream. Cut down through the centre, sweep along the bottom, fold up — you’re keeping air in, not mixing it out.
- Dip the ladyfingers. One at a time, dip each biscuit into the limoncello or syrup — one second per side, no more. A correctly dipped biscuit feels slightly tacky on the surface but still snaps if you bend it sharply. That’s exactly right.
- Build layer one. Arrange dipped biscuits in a single layer in your dish, spread half the cream mixture over them, then half the lemon curd. An offset spatula makes the curd layer even — drag it slowly and the bright yellow against the white cream is worth the extra 30 seconds.
- Build layer two. Repeat with remaining biscuits, then lemon curd, then the rest of the cream on top. Finish with a thin scraping of lemon curd and a scatter of lemon zest — the colour contrast signals citrus before anyone even tastes it.
- Chill for at least 6 hours, or overnight. For clean slices, move the dish to the freezer for 45 minutes before serving — then let it sit at room temperature for 5 minutes before cutting.
Variations
For a berry-lemon version, swirl 3 tbsp (45g) of raspberry jam into the lemon curd before layering — the tartness cuts through the richness and the colour is striking. For a dairy-light swap, a good-quality full-fat coconut cream (chilled overnight) can replace the heavy whipping cream and holds peaks well enough to work in this recipe.
Serving Suggestions
A small scoop of lemon sorbet alongside keeps the citrus theme sharp and adds a temperature contrast. A few fresh raspberries on the plate add colour and a slight tartness that plays off the cream. A short espresso on the side works surprisingly well — the bitterness resets the palate between bites.
FAQ
Can I make lemon tiramisu the day before?
Yes — this is actually one of the best make-ahead desserts I know. After testing it at 4 hours, 8 hours and 24 hours of chilling, the 24-hour version had the cleanest layers and the most developed flavour. Cover tightly with plastic wrap and keep refrigerated until 10 minutes before serving.
Can I use store-bought lemon curd?
You can, and it works fine for a weeknight version. Homemade lemon curd — which takes about 10 minutes on the stovetop — has a noticeably sharper, less sweet flavour that holds up better against the richness of the mascarpone cream. The ratio that worked best in my testing was 3/4 cup (240g) total curd across both layers.
What if I can’t find ladyfinger biscuits?
Sponge fingers are the closest swap and are widely available in the baking aisle of most supermarkets. Some bakers use thin slices of plain sponge cake cut into strips — it gives a softer, more custardy texture rather than distinct layers. Whether that’s a flaw or a feature probably depends on who you’re serving.
