Chocolate Eclair Cake
Prep Time: 1 hour
Chill Time: 24 hours
Total Time: About 25 hours
Servings: 12–16
Category: Dessert
Notes After Making
Add
Ingredients
Filling
- 1¾ cups heavy whipping cream (410 g)
- 3 tablespoons sugar, optional
- 1 teaspoon vanilla extract, optional
- 2 boxes (3.4 ounces each) instant vanilla pudding mix
- 3 cups milk (732 g)
- 1 box graham crackers (about 3 sleeves)
- 2–3 tablespoons espresso powder, optional (for Espresso Éclair Cake)
Chocolate Topping
- ⅓ cup cocoa powder (33 g)
- 1 cup granulated sugar (198 g)
- ¼ cup milk (61 g)
- ½ cup butter (113 g)
- 1 teaspoon vanilla extract
Instructions
Prepare the Filling
- In a 9×13-inch baking dish, arrange a layer of graham crackers across the bottom, using about 1 full sleeve to cover the surface.
- In a medium bowl, add the heavy whipping cream. If using, add the sugar and vanilla extract.
- Beat on medium-high speed for about 4 minutes, until whipped and stiff peaks form.
- In a separate large bowl, combine the milk and vanilla pudding mixes. Beat on medium speed for about 2 minutes, until thickened.
- If making an Espresso Éclair Cake, mix the espresso powder into the pudding mixture.
- Gently fold the whipped cream into the pudding mixture until smooth and fully combined.
Assemble the Cake
- Spread half of the pudding mixture evenly over the graham crackers.
- Add another layer of graham crackers.
- Spread the remaining pudding mixture evenly over the crackers.
- Finish with a final layer of graham crackers.
Prepare the Chocolate Topping
- In a small saucepan, combine the cocoa powder, sugar, and milk.
- Bring to a full rolling boil over medium heat, stirring constantly.
- Boil for 1 minute.
- Remove from heat and continue stirring for about 1 minute to cool slightly.
- Add the butter and vanilla extract. Stir until the butter is completely melted and the glaze is smooth.
Finish and Chill
- Immediately pour the chocolate glaze over the top layer of graham crackers.
- Tilt the dish gently as needed to spread the glaze evenly over the entire surface.
- Cover and refrigerate for at least 24 hours before serving to allow the graham crackers to soften and the flavors to develop.
Jessica’s Notes
Make Ahead
- This dessert is best made at least 24 hours ahead.
- It can be prepared up to 2 days before serving.
- The longer chilling time allows the graham crackers to soften into a cake-like texture.
Storage
Store covered in the refrigerator for up to 5 days.
Freezer-Friendly
Freeze for up to 1 month. Thaw overnight in the refrigerator before serving. The texture of the whipped cream layer may soften slightly after freezing.
Variations
- Make an espresso style by adding 2–3 tablespoons espresso powder to the pudding mixture.
- Use chocolate graham crackers for a deeper chocolate flavor.
- Add sliced bananas between the layers for a banana cream éclair cake.
- Replace vanilla pudding with chocolate pudding for a richer version.
- Top with chocolate shavings, toasted nuts, or fresh berries before serving.

