No-Bake Chocolate Eclair Cake

There are desserts that feel like a project. And then there are desserts that feel like a secret. This one is the secret.

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No-Bake Chocolate Eclair Cake is what you make when you want something that tastes like a real pastry shop moment, but you also want your evening back. No oven heat. No complicated dough. No waiting for anything to rise. Just layers, a silky vanilla pastry cream, and a glossy chocolate finish that makes people pause before they take the first bite.

Chocolate Eclair Cake
Yan Brodji

No-Bake Chocolate Éclair Cake

This no-bake chocolate éclair cake is a rich, creamy dessert that is incredibly easy to prepare and perfect for chocolate lovers. Layers of tender cookies, silky vanilla pastry cream, and a glossy chocolate ganache come together in a chilled dessert that tastes even better the next day.
Prep Time 30 minutes
Total Time 6 hours 30 minutes
Servings: 8 slices
Course: Dessert
Cuisine: French
Calories: 350

Ingredients
  

  • 400 g Petit-Beurre style cookies or graham crackers
  • 1 L whole milk
  • 120 g granulated sugar
  • 100 g cornstarch
  • 4 egg yolks
  • 1 tbsp vanilla extract
  • 50 g unsalted butter
  • 200 g dark or milk chocolate
  • 100 ml heavy cream
  • 20 g butter (for the ganache)

Equipment

  • saucepan
  • whisk
  • rectangular baking dish

Method
 

  1. In a saucepan, whisk together egg yolks, sugar, and cornstarch. Gradually pour in the milk while whisking. Cook over medium heat, stirring constantly, until thickened.
  2. Remove from heat and stir in butter and vanilla extract. Mix well and allow the cream to cool completely.
  3. In a rectangular dish, place a layer of cookies, followed by a layer of pastry cream. Repeat the layers, finishing with cookies on top.
  4. Refrigerate the cake for at least 2 hours to allow it to set.
  5. Heat the cream and pour it over the chopped chocolate. Stir until smooth, then add the butter for shine.
  6. Pour the ganache over the chilled cake, spread evenly, and refrigerate for at least 4 hours, preferably overnight.

Nutrition

Calories: 350kcalCarbohydrates: 40gProtein: 5gFat: 20gSaturated Fat: 10gCholesterol: 100mgSodium: 50mgFiber: 2gSugar: 25g

Notes

This cake is best made a day ahead for optimal texture and flavor. Use dark chocolate for a deeper, more intense taste. Fresh fruit can be added between layers for a lighter twist.

Tried this recipe?

Let us know how it was!

It’s the kind of dessert that quietly steals the show at a family lunch. It sits on the table looking innocent, then one slice disappears, then another. Someone asks who made it. Someone else asks if there’s more. And suddenly you realize you’ve become the person who “always brings that cake.”

If you’ve ever wanted a dessert that does the most while you do the least, this is it.​

Why this cake hits so hard

At first glance, it looks like a classic éclair turned into a cake. And yes, that’s exactly the point. You get that familiar rhythm: creamy vanilla filling, a soft pastry-like layer, and chocolate on top.

The twist is how effortless it feels. Instead of baking pâte à choux or piping anything, you stack cookies, spread pastry cream, and let the refrigerator do the heavy lifting. The cookies slowly soften into something tender, almost cake-like, and the layers settle into that perfect slice.

It’s also a dessert that forgives you. Your layers don’t need to be perfect. Your ganache does not have to be Instagram-level smooth. Once it chills, everything comes together like it always meant to be that way.​

Chocolate Eclair Cake

The vibe: rich, creamy, cold, and comforting

This isn’t a light dessert. It’s not pretending to be. This is the dessert you serve when you want people to sigh a little after the first bite.

The pastry cream tastes like vanilla warmth. The chocolate feels deep and familiar. The chilled texture makes it feel clean and refreshing even though it’s decadent. That contrast is why it works year-round, even when it’s warm outside and the last thing you want is a hot kitchen.

And because it’s served cold, it’s also the dessert that waits for you. Make it ahead, tuck it in the fridge, and your future self will feel genuinely cared for.​

Ingredients that make the magic

This recipe stays close to pantry basics, but each ingredient matters.

Cookies: These create the structure. They start crisp, then soften into tender layers once they rest with the pastry cream. Petit-Beurre cookies give the most classic feel, but Graham Crackers work beautifully too.

Milk: Whole milk gives the pastry cream its richness and that classic custard feel.

Cornstarch: The thickening power that turns sweet milk into something sliceable.

Egg yolks: These bring that traditional pastry-cream depth, the slightly golden flavor you can’t fake.

Vanilla: The quiet background note that makes everything taste like a bakery.

Chocolate and cream: Together, they form a ganache that looks glossy and tastes like the best part of a chocolate bar melting slowly.

Butter: A little in the pastry cream for silkiness, a little in the ganache for shine.​

Chocolate Eclair Cake ingredients

What to expect while you make it

The pastry cream is the only part where you need to pay attention. Not in a stressful way, but in a “stay close to the stove” way.

You whisk, you heat, you stir. It thickens, and suddenly you have this smooth, warm cream that already smells like dessert. Then you let it cool fully. That cooling step matters because warm pastry cream can soften the cookie layers too fast and make everything slump.

After that, it’s pure assembly.

Layer cookies. Spread cream. Repeat. Chill. Pour ganache. Chill again.

It’s simple. It’s calming. And it feels oddly satisfying, like building something that will make people happy.​

Step-by-step, in real life terms

  1. Make the pastry cream base.
    Whisk yolks, sugar, and cornstarch together first. This step is where smoothness starts. Then add milk gradually while whisking so you don’t chase lumps later.
  2. Cook until thick.
    Medium heat, constant stirring. You’ll feel it change. One moment it’s liquid, then it becomes a thick cream that coats your spoon.
  3. Finish with butter and vanilla.
    Off heat, stir them in. The texture turns glossy and soft. Then cool it completely.
  4. Build your layers.
    Cookies first, then cream. Repeat. End with cookies for a clean top layer.
  5. Chill to set.
    The first chill gives the cake structure.
  6. Make the ganache.
    Heat cream, pour over chopped chocolate, stir until smooth, add butter for shine.
  7. Glaze and chill again.
    Spread the ganache over the cold cake. Then let it rest long enough for the slices to cut clean and look stunning.​

How to get that “perfect slice” look

This cake is all about time.

If you cut it too early, it will taste great but look a bit messy. If you let it chill overnight, it becomes the version people remember. The layers settle. The cookies soften evenly. The ganache firms up just enough to cut without cracking.

Small tricks that help:

  • Use a rectangular dish so the layers sit flat and stable.​
  • Spread pastry cream all the way to the edges so every bite has the same balance.​
  • Let the ganache cool slightly before pouring so it doesn’t run too thin.​
  • Wipe your knife between slices for clean edges. This is the tiny move that makes it look bakery-made.
Chocolate Eclair Cake ingredients

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Serving ideas that feel special

This Chocolate Eclair Cake is already a full moment on its own, but it also pairs beautifully with simple extras.

A few serving ideas:

  • A dusting of crushed cookies for texture.​
  • A light sprinkle of powdered sugar for that classic patisserie look.​
  • Fresh strawberries or raspberries on the side to cut the richness.​
  • A cup of strong coffee or Earl Grey tea for a cozy contrast.​

If you’re serving guests, bring the dish to the table whole first. Let them see the glossy top. Then cut. The reveal is half the pleasure.

FAQs (the kind people actually ask)

Is this basically an icebox cake?

Yes, and that’s why it works. The cookies soften as it chills, turning into cake-like layers without baking.​

Can I make it ahead for guests?

You should. Overnight chilling gives the best texture and the cleanest slices.​

What chocolate tastes best here?

Dark chocolate makes it bold and less sweet. Milk chocolate makes it softer and more candy-like. Both work.​

Can I swap the cookies?

Yes. Stick with a dry cookie that can absorb moisture and hold its shape while layering.​

Products / Tools / Resources

  • Rectangular baking dish: Gives clean layers and easy slicing.​
  • Medium saucepan: Helps cook the pastry cream evenly.​
  • Whisk: The simplest way to keep the cream smooth.​
  • Silicone spatula: Great for scraping every bit of pastry cream and spreading clean layers.​
  • Heatproof bowl: Best for mixing ganache after pouring hot cream over chocolate.​
  • Good quality chocolate bar or baking chocolate: The flavor shows up clearly in the topping.