Name: Large Batch No-Bake Chocolate Eclair Cake for Family Gatherings
Prep time: 25 min
Total time: 8 h 25 min
Yield: 24 servings
Cuisine: American
Ingredients: 4 boxes instant vanilla pudding mix (3.4 oz each); 6 cups whole milk (cold); 3 cups whipped topping (such as Cool Whip, thawed); 3 sleeves honey graham crackers (approximately 27 full sheets); 3 cups powdered sugar (sifted); 6 tablespoons unsweetened cocoa powder; 6 tablespoons unsalted butter (softened); 6 tablespoons whole milk; 2 teaspoons pure vanilla extract

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My grandmother used to make this every summer for our family reunions, and the pan was always the first thing to disappear from the dessert table. There is something magical about layers of graham crackers, vanilla pudding, and chocolate glaze that just works every single time.

This recipe is scaled up to feed a big group, so it is perfect for potlucks, holiday dinners, or any occasion where you need a guaranteed crowd-pleaser. Best of all, no oven required — just a little patience while it chills overnight.

Large Batch No-Bake Chocolate Eclair Cake for Family Gatherings

A creamy, dreamy no-bake dessert that feeds a crowd and tastes like pure nostalgia.

5.0 (20 reviews)

Vegetarian

Prep25 min

Chill Time (overnight or at least 8 hours)8 hr

Total8 hr 25 min

Serves24 servings

LevelEasy

Ingredients

Pudding Layer

4 boxes instant vanilla pudding mix , 3.4 oz each
6 cups whole milk , cold
3 cups whipped topping , such as Cool Whip, thawed

Graham Cracker Layers

3 sleeves honey graham crackers , approximately 27 full sheets

Chocolate Topping

3 cups powdered sugar , sifted
6 tablespoons unsweetened cocoa powder
6 tablespoons unsalted butter , softened
6 tablespoons whole milk
2 teaspoons pure vanilla extract

Instructions

Make the Pudding Layer

In a very large mixing bowl, whisk together the instant vanilla pudding mix and cold milk for about 2 minutes until the mixture begins to thicken.

Let the pudding sit for 3 to 4 minutes to set slightly, then fold in the thawed whipped topping until fully combined and smooth. Set aside.

Layer the Cake

Lightly spray a full-size 9x13-inch pan or a large half-sheet pan (approximately 12x18 inches) with nonstick cooking spray to help keep the bottom crackers in place.

Lay a single layer of graham crackers across the bottom of the pan, breaking crackers as needed to fill in the gaps.

Spread half of the pudding mixture evenly over the graham cracker layer using an offset spatula or the back of a spoon.

Add a second layer of graham crackers directly on top of the pudding.

Spread the remaining pudding mixture evenly over the second cracker layer.

Finish with a final layer of graham crackers on top, pressing down very gently so everything stays flat.

Make the Chocolate Topping

In a medium saucepan over low heat, combine the butter and milk, stirring until the butter is melted.

Remove the pan from heat and whisk in the sifted cocoa powder and powdered sugar until the mixture is completely smooth and glossy. Stir in the vanilla extract.

Let the topping cool for about 5 minutes so it thickens slightly and is easier to spread without melting the layers beneath.

Pour the chocolate topping over the final graham cracker layer and spread it evenly all the way to the edges.

Chill and Serve

Cover the pan tightly with plastic wrap and refrigerate for a minimum of 8 hours, though overnight is strongly preferred. This resting time is what transforms the graham crackers into a soft, cake-like texture.

When ready to serve, slice into squares and use a spatula to lift each piece out cleanly. Wipe your knife between cuts for the neatest slices.

Tips & Notes

Do not rush the chill time — 8 hours is the minimum, but overnight gives the best texture by far. The crackers need time to fully soften into those tender cake-like layers.
Use cold milk straight from the refrigerator when making the pudding. Warm milk will prevent it from setting properly.
For the cleanest slices, run a sharp knife under hot water, wipe it dry, and cut. Repeat between each cut.
You can make this up to 2 days ahead, which makes it a stress-free choice for busy hosting days.
Want to dress it up? Sprinkle mini chocolate chips, crushed graham crackers, or a drizzle of caramel over the chocolate topping before chilling.
If you do not have a half-sheet pan, two standard 9x13-inch pans work perfectly — just divide everything evenly between them.

Storage: Cover tightly with plastic wrap or store in an airtight container in the refrigerator for up to 3 days. The texture is actually best on day 2. This dessert does not freeze well because the pudding layer can become watery upon thawing.

Nutrition per serving · estimated

285 Cal

10g Fat

46g Carbs

4g Protein

1g Fiber

28g Sugar

310mg Sodium

Why This Is My Go-To Potluck Dessert

Whenever someone asks me to bring dessert to a gathering, this is the recipe I reach for first. It requires no baking, no fancy equipment, and no last-minute stress. Everything can be assembled the night before, so you actually get to enjoy the party instead of running around in the kitchen.

The other reason this cake is such a reliable crowd-pleaser is that it hits every texture and flavor note people love — creamy, chocolatey, soft layers that feel almost like a classic eclair but without any of the fuss. Kids go wild for it, and adults always ask for the recipe.

Tips for Scaling and Serving a Big Group

One of the best things about this recipe is how forgiving it is when you need to scale up or down. For a smaller group, simply halve everything and use a standard 9×13-inch pan. For a truly massive crowd, two full pans can be assembled at the same time and chilled side by side.

When it comes to serving, cut the cake while it is still cold and firm from the refrigerator — this gives you the cleanest, neatest squares. If the chocolate topping has set very firmly, let the pan sit at room temperature for just 5 minutes before slicing to make cutting easier without the layers sliding around.

Large Batch No-Bake Chocolate Eclair Cake for Family Gatherings