Eclair Squares — Kathy Petty’s No Bake Dessert for a Crowd
The No-Bake Dessert That Will Make You the Hero of Every Potluck
Eclair Squares are one of those recipes that I have been making for years and years, and every single time I put them on the table they disappear fast. This recipe comes from Kathy Petty — a wonderful lady I went to church with back in college. Kathy was one of those people who just knew how to feed people well, and I got so many of my very first recipes from her. This is one I have never stopped making, and once you try it, you will understand why. No baking required, just layers of graham crackers, creamy vanilla pudding filling, and a rich chocolate glaze poured over the top. Make it the night before, refrigerate it overnight, and you have the most impressive easy dessert ready to go.
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Watch me make these Eclair Squares from start to finish — or scroll down for the full printable recipe card.
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• French vanilla over regular vanilla every time. The richer flavor is what makes this taste like an actual eclair and not just a graham cracker cake.
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Eclair Squares (Kathy Petty’s Recipe)
Ingredients
- – 3 packages graham crackers
- – 2 packages 3.4 oz each Jell-O French Vanilla Instant Pudding Mix
- – 3 cups milk
- – 8 oz Cool Whip whipped topping
- – 2 oz Baker’s semi-sweet chocolate baking bar
- – 3 tablespoons butter
- – 5 tablespoons milk
- – approximately 2 cups powdered sugar
Equipment
- 9×13 Pan
Method
- Layer graham crackers across the bottom of a 9×13 pan in a single layer.
- In a large bowl, combine the pudding mix and milk. Stir well and set aside to let it set up for a few minutes.
- In a small saucepan over low heat, melt together the chocolate, butter, and milk. Once melted, whisk in the powdered sugar until thick enough to spread. Set aside.
- Fold the Cool Whip into the set pudding mixture and stir until well combined.
- Spread half of the pudding mixture over the first layer of graham crackers.
- Add a second layer of graham crackers on top of the pudding.
- Spread the remaining pudding mixture over the second layer of graham crackers.
- Add a final third layer of graham crackers on top, covering as evenly as possible.
- Pour the chocolate glaze over the top layer and spread evenly to cover all the graham crackers.
- Cover and refrigerate overnight before serving.
Video
Notes
– Be gentle when spreading the pudding layers so the graham crackers don’t shift around.
– Cover the final graham cracker layer as completely as possible before pouring the chocolate glaze — you want a solid surface so the chocolate doesn’t seep down into the pudding.
– This recipe is easily doubled for a very large crowd — use two 9×13 pans.
Why These Eclair Squares Work
I cannot tell you how many times I have made Eclair Squares over the years. This is one of those recipes that lives in my permanent rotation, and it all started with Kathy Petty. When I was in college I was blessed to go to church with some incredible women who knew how to cook, and Kathy was one of them. She shared so many recipes with me during that season of my life, and this no-bake dessert is one I have carried with me ever since.
What makes Eclair Squares so special is how simple they are. There is no baking involved — just layering, mixing, and a little patience while they set up in the refrigerator overnight. That overnight rest in the 9x13 pan is the secret. The graham crackers absorb the creamy pudding filling and soften into the most perfect texture, almost like a real eclair pastry. The Kitchn has a great breakdown of the icebox-cake technique if you want to read more on the science — but the short version is: time in the fridge is what turns crackers into cake.
I made these for Sunday lunch and they were gone before I could blink. That is always the sign of a great recipe. If you are looking for a no-bake dessert that feeds a crowd, looks impressive, and takes almost no effort, this is your recipe. Thank you, Kathy Petty — this one is a forever keeper.
A Few Things That Make Eclair Squares Even Easier
- Make these the night before. Truly the night before. The graham crackers need a full overnight in the fridge to soften into that eclair-pastry texture. Four hours is the minimum, but overnight is where the magic happens. If you try to serve these too early, you will get crunchy crackers instead of soft cake-like layers.
- Use French vanilla pudding , not regular vanilla. I know, it sounds like a small thing. It is not. French vanilla has a deeper, more custardy flavor that mimics the inside of a real eclair. Regular vanilla works in a pinch, but French vanilla is the move every single time.
- Whole graham cracker sheets only — do not break them up. The whole sheets fit a 9×13 pan almost perfectly in three layers. Breaking them apart makes them harder to layer evenly, and you end up with thin spots in the filling. Honey Maid full sheets are exactly the right size.
- Melt the chocolate glaze gently. Baker's semi-sweet chocolate burns fast on direct heat. I melt mine in 30-second microwave bursts, stirring between each, until it is smooth and pourable. The glaze should be warm enough to pour but not hot — too hot and it melts the Cool Whip layer underneath.
- Cut clean squares with a hot knife. Run a sharp knife under hot water, wipe it dry, and cut. Wipe the knife clean between every cut. You will get bakery-clean squares instead of a messy chocolate smear, and the squares will look like you spent way more time than you did.
Eclair Squares FAQ — The Questions I Get Every Time
How long do Eclair Squares need to set in the fridge?
At least 4 hours, but overnight is better. The graham crackers need time to absorb the pudding filling and soften into a cake-like texture — that is what makes this dessert taste like an eclair instead of a layered cracker stack. I make mine the night before every single time and have never regretted the extra wait.
Can I make Eclair Squares ahead of time?
Yes, and you should. These actually get better as they sit. I make them the night before for Sunday lunch or a potluck, and they hold beautifully in the fridge for 2 to 3 days, covered. The chocolate glaze stays glossy and the layers only get more eclair-like over time.
Can I freeze Eclair Squares?
Yes — they freeze surprisingly well. Cut them into squares first, freeze in a single layer on a baking sheet until firm, then transfer to an airtight container with parchment between the layers. They keep up to 2 months in the freezer. Thaw in the fridge overnight before serving.
Can I use regular vanilla pudding instead of French vanilla?
You can, and it will still be delicious. But the French vanilla pudding is what gives these the rich, custardy eclair flavor — regular vanilla tastes more like a graham cracker cake. If you can find French vanilla, use it. If you only have regular vanilla on the shelf, the recipe still works.
What size pan do I need for Eclair Squares?
A standard 9×13 pan is perfect. I use my Farberware nonstick 9x13 because the squares lift out cleanly and the size accommodates three full layers of graham crackers without any cutting or trimming. A glass 9×13 works fine too — the recipe is forgiving on that front.
Can I substitute homemade whipped cream for Cool Whip?
You can, but I do not. Cool Whip is more stable and holds its shape better through the overnight rest in the fridge — homemade whipped cream tends to weep liquid and deflate. If you really want to use homemade, stabilize it with a tablespoon of unflavored gelatin or use a mascarpone-stabilized whipped cream. For a recipe this easy, though, Cool Whip is the move.
How many Eclair Squares does this recipe make?
A 9×13 pan cuts into 12 generous squares or 16 to 24 smaller ones depending on how you slice them. For our family or a potluck, I cut them into 16 — that gives everyone a good-sized piece without being overly sweet. For a kids’ party or a dessert table with multiple options, 24 smaller squares is the way to go.
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Ingredients
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More No-Fuss Desserts That Feed a Crowd
- Simple Cherry Cheesecake Bars — creamy, no-bake, and a guaranteed crowd-pleaser at any potluck
- Fudgy Pie — The Ugly Dessert That Tastes Like a Million Dollars — don’t let the name fool you, this one disappears first every time
- Chewy Oatmeal Cookie Bars — My Mom’s Ancient Recipe — my most-requested cookie, straight from a cookbook called Straight from the Horse’s Mouth
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Eclair Squares — About Stephanie’s Recipes
Stephanie Longstreth is the home cook, mom, and storyteller behind StephanieCooksForACrowd.com. She cooks for a family of seven in Florida — five kids, two cats, and one husband who appreciates a good meal. Four of her children came home through adoption, and family stories are woven into everything she makes and shares. Find her crowd-friendly recipes, weekly meal plans, and real family life on TikTok, Instagram, YouTube, and Pinterest @stephaniecooksforacrowd.