I made this Kinder Bueno cake the first time because I had a half-used jar of Nutella, a pack of ladyfingers, and exactly zero patience for turning the oven on. It’s one of those desserts that looks “fancy bakery” once it’s sliced, but the actual work is: whip, layer, chill. That’s it.

I’m calling it a cake because that’s how we serve it—cut into squares, stacked layers, creamy filling—but it’s basically a no-bake tiramisu-style dessert with Kinder Bueno folded through the cream and little pockets of Nutella in every layer. It’s sweet, yes, but the crunch from the Bueno pieces keeps it from tasting like a plain cream dessert, and the ladyfingers soften into that perfect “spoon cake” texture after a couple of hours in the fridge.

Below is exactly how I make it, with a clear ingredient breakdown, step-by-step instructions, and the little tricks that make it come out neat and sliceable every time.

What you’ll get (texture + flavor)

Top layer: light cream that pipes nicely, holds its shape, and makes the whole thing look finished.
Middle layers: mascarpone-based filling that’s firm enough to slice but still soft on the fork.
Crunch + chocolate: chopped Kinder Bueno folded into the filling, plus Nutella dotted between layers.
Base: ladyfingers dipped quickly in milk so they soften without turning into mush.

If you’ve ever had a dessert that collapses into a puddle when you cut it—this one doesn’t, as long as you chill it properly and don’t over-soak the biscuits.

Ingredients (broken down so it’s easy to shop)

Base

200 g ladyfingers
200 ml milk (for dipping)

Notes:
Ladyfingers are the structure here, so don’t substitute soft sponge cake unless you’re okay with a looser slice. Milk keeps the flavor clean (and kid-friendly), and it doesn’t fight with the chocolate the way coffee can.

Filling layer (the main creamy part)

250 ml heavy/whipping cream (cold)
250 g mascarpone (cold)
2 tbsp powdered sugar
5 Kinder Bueno bars, chopped

Why these matter:

The mascarpone gives a slightly dense, cheesecake-like base that firms up in the fridge.
The heavy cream adds volume and makes the filling lighter.
Powdered sugar dissolves instantly so you don’t feel grit.
Kinder Bueno gets folded in at the end so it stays in pieces instead of melting into the cream.

Nutella layer

Nutella, melted slightly (amount is up to you)

How much do I use?
I don’t measure. I just do small spoonfuls (or pipe dots) across each layer—enough to get Nutella in every bite without turning the whole thing into a Nutella soup.

Topping (for piping + clean finish)

150 ml heavy/whipping cream (cold)
2 tbsp cream cheese (cold)
1 tbsp powdered sugar

Why add cream cheese?
It stabilizes the topping so your piping stays pretty and doesn’t weep. It also gives a slight tang that keeps the top from tasting too sweet.

Equipment you’ll want

20 × 20 cm pan (square is easiest for clean slices)
Electric mixer (hand mixer is fine)
Spatula
Shallow bowl for milk dipping
Piping bag (optional, but it makes the Nutella + topping look much neater)

Step-by-step instructions (how I assemble it)

1) Make the main Kinder Bueno filling

In a mixing bowl, add mascarpone and powdered sugar.

Beat briefly—just until smooth. Don’t overmix mascarpone by itself for ages; it can loosen.
Add 250 ml cold heavy cream.
Whip until the filling is firm. You want it thick enough that it holds peaks and doesn’t slide off a spoon.
Chop 5 Kinder Bueno bars into small pieces. I do a mix—some tiny bits, some larger chunks.
Fold the chopped Bueno into the cream mixture with a spatula.

Now divide the filling into two equal parts. This makes the layering easy and keeps things even.

2) First layer: ladyfingers + filling + Nutella

Pour milk into a shallow bowl.
Dip each ladyfinger quickly—like 1 second per side. You want them moistened, not soaked.
Arrange a full layer of dipped ladyfingers in the bottom of a 20 × 20 cm pan.

Spread half of the Kinder Bueno filling on top in an even layer.
Melt Nutella slightly (10–15 seconds in the microwave usually does it).
Add Nutella in little spots across the surface—either pipe dots with a small hole cut in a bag, or just use a spoon.

My personal rule: Nutella goes in “pockets,” not a full layer. Full layer = slippery slices.

3) Second layer: repeat

Add a second layer of quickly dipped ladyfingers.
Spread the remaining half of the filling.
Dot with Nutella again.

At this point it already looks good, but the topping makes it feel finished and helps hide any messy spreading.

4) Make the topping and decorate

In a clean bowl, whip 150 ml cold heavy cream with 1 tbsp powdered sugar and 2 tbsp cream cheese.
Whip until it’s thick and pipeable—soft peaks are okay, but you want it to hold shape.
Pipe on top however you like. I usually do simple swirls or lines because it’s faster.
Optional: top with Kinder Bueno pieces, a drizzle of Nutella, or even some crushed wafer crumbs.

5) Chill (this is what makes it sliceable)

Refrigerate for 2–3 hours minimum. If you want super clean slices, do 4 hours or even overnight.

When ready, cut into squares. Wipe the knife between slices if you care about sharp edges (I do when I’m taking photos, otherwise I just eat it).

Tips that actually help (so it doesn’t go wrong)

Keep the dairy cold

Cold cream whips faster and holds better. If your kitchen is warm, put the bowl in the fridge for 10 minutes first.

Don’t over-dip the ladyfingers

This is the biggest mistake. If you soak them, the bottom turns gummy and the layers slide. Quick dip only.

Whip the filling firm, but don’t push it to “butter”

Stop when it holds peaks and looks stable. If you keep going, the texture can turn grainy.

Chop the Bueno after unwrapping everything

I unwrap all bars first, then chop. Less stopping, less sticky hands, and it’s faster.

For neat Nutella dots, warm it gently

Warm Nutella flows. Cold Nutella tears the filling when you try to spread it.

Want it less sweet?

Use slightly less Nutella and keep the dots small. The Bueno already adds sweetness.

Storage

Keep it covered in the fridge.
Best texture is within 24–48 hours. After that it’s still tasty, but the ladyfingers keep softening and the Bueno pieces lose some crunch.