Gluten Free Strawberry Tiramisu is the Ultimate Summer Dessert

This gluten-free strawberry tiramisu made without ladyfingers leans into something even better, a homemade sponge cake that slices cleanly and soaks up every drop of bright strawberry flavor without turning mushy. Layers of mascarpone whipped cream and strawberry syrup make this gluten-free summer dessert feel lighter and fruitier than classic tiramisu, with a texture that somehow gets even better after a day in the fridge.

A square white baking dish filled with neatly arranged sliced strawberries, placed on a white towel with whole strawberries, plates, and cutlery nearby.

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Skill Level: Intermediate- The bake is simple and has little hands-on time, but the recipe requires preplanning so the timing works out.
Shortcut Central: Use store-bought gluten-free ladyfingers.
Flavor Remix: Swap for fresh raspberries for a tangier twist
Allergy Watch: Gluten Free, Nut-Free

This strawberry tiramisu started with a conversation at a local Italian grocery store. I noticed their tiramisu looked different from the classic ladyfinger version and learned they were using sponge cake instead. That little detail completely changed how I approached a gluten-overbaked. They can be expensive and inconsistent once soaked, but a fresh sponge cake stays tender while holding its shape beautifully for days.

What really makes this version stand out is the homemade strawberry syrup. Instead of using jam or artificial flavoring, fresh strawberries simmer down into a vibrant syrup that tastes like peak strawberry season. After straining the syrup, the cooked berries get tucked right into the filling, so nothing goes to waste and every layer gets an extra punch of fruity flavor.

This recipe works best when broken into stages. The sponge cake needs time to dry out, and the assembled tiramisu needs time to chill, so planning ahead gives you the best texture. Day one is delicious. Day two might be even better.

Ingredient Notes

Gluten-Free Flour: Use any 1:1 gluten-free flour blend with xanthan gum, like Bob's Red Mill 1:1 Flour or King Arthur Measure for Measure.
Cornstarch: By mixing in cornstarch, we are essentially turning our 1:1 flour into a gluten-free cake flour.
Eggs: The sponge gets its lift from whipped eggs, so room temperature eggs are worth it here. Cold eggs do not whip as quickly or as fully.
Cream of Tartar: Just a little will help stabilize the egg whites.
Vanilla Extract: Or use an equal amount of vanilla paste.
Strawberries: Fresh strawberries only. If you only have frozen strawberries, I suggest making my gluten free starwberry roll cake instead.
Orange Liqueur: I used Grand Marnier but you can skip this entirely to make a tiramisu without alcohol.
Mascarpone Cheese: Cream cheese is the only suggested substitue but it will lack flavor. Whatever you use, ensure that it is properly softened.

Various baking ingredients are arranged on a table, including strawberries, eggs, gluten-free flour, mascarpone, heavy cream, sugars, vanilla extract, cream of tartar, cornstarch, water, and orange liqueur.

How to Make Gluten-Free Tiramisu with Strawberries

A step-by-step visual guide for making gluten-free strawberry tiramisu. You can skip to the recipe for the full written instructions.

Side-by-side images of mixing bowls: the left shows stiffly whipped egg whites on a whisk, and the right shows a pale yellow batter mixture.

Divide the Eggs

Whipping the egg whites separately gives the sponge its signature airy texture. Start slowly so the foam builds gradually and stays stable. Folding the flour and egg whites into the yolks in stages keeps the batter light instead of deflating all the air you just whipped in.

A mixing bowl with cake batter and a wooden spoon on the left; on the right, cake batter spread evenly in a rectangular baking pan.

Spread the Batter

Sift in the dry ingredients for the lightest texture.

Spread the batter evenly in the pan before baking. A thin, level sponge bakes more consistently.

A rectangular sheet of sponge cake cooling on a metal wire rack, viewed from above on a white surface.

Bake and Cool

Once baked, let the cake cool completely before peeling away the parchment paper.

Drying the sponge overnight is not optional if you want clean layers. Fresh sponge cake absorbs too much liquid too quickly and can collapse once layered with syrup.

Split image: Left shows a saucepan with chopped strawberries. Right shows two bowls, one with strawberry juice and the other with cooked strawberries.

Make the Strawberry Syrup

Cooking the strawberries briefly pulls out their juices while keeping the flavor fresh and bright. Straining the syrup gives you a smooth soaking liquid while the softened berries become part of the filling later.

The orange liqueur gets stirred in after cooking so its citrus flavor stays vibrant instead of cooking off completely.

A glass bowl containing thick, creamy mixture being stirred with a wooden spatula on a light surface.

Make the Mascapone Cream

Beat the mascarpone, cream, powdered sugar, and vanilla just until thick and fluffy. Overmixing can make mascarpone grainy, especially if it gets too warm.

The filling should hold soft peaks that spread easily without running.

Several rectangular pieces of plain baked cake are arranged on a white cutting board atop a light-colored surface.

Trim to Fit

Trim the first layer to fit your pan and then trim the remaining pieces to fit, Jenga style.

Four-panel image shows steps of assembling a layered dessert in a square baking dish: plain cake, whipped cream spread, chopped strawberries, and another cake layer added.

Assemble

Brush the sponge with syrup instead of dunking it. Sponge cake absorbs liquid much faster than traditional ladyfingers, so brushing keeps the layers flavorful without becoming soggy.

Layer the mascarpone filling with the reserved strawberries so every bite gets a little juicy fruit tucked between the creamy layers.

A square ceramic baking dish filled with sliced strawberries arranged in a single layer over a creamy base.

Chill

For the prettiest topping, you can do just half strawberries outside up so it is bright but quite like contrast between the red and white.

The longer you chill the better it is!

Jen's Recipe Notes

Dry the sponge overnight, just cover with a dry towel so excess moisture can escape.
A pastry brush gives you much more control than dipping the cake into syrup.
Cold mascarpone tends to stay lumpy no matter how long you mix it.

A slice of strawberry shortcake with whipped cream on a plate, topped with fresh strawberry slices, with a fork and whole strawberries nearby.

Make Ahead and Storing

Make Ahead: Bake the sponge cake and prepare the strawberry syrup up to one day ahead. Assemble the tiramisu the next morning and chill until serving.

Storing: Store covered in the refrigerator for up to 3 days. The texture actually improves as it sits.

Freezing: Do not freeze.

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Recipe Questions

Can I make strawberry tiramisu without alcohol?

Yes. Replace the orange liqueur with orange juice for a bright citrus flavor without alcohol.

Why does my tiramisu fall apart when sliced?

Usually the sponge was too fresh or oversoaked. Letting the sponge dry overnight and brushing on the syrup instead of soaking prevents this problem.