No-Bake Peanut Butter Eclair Cake

This Peanut Butter Eclair Cake is a beloved Southern no-bake dessert—layers of buttery graham crackers, fluffy peanut butter filling, and rich chocolate ganache that sets in the fridge like magic. With just 6 simple ingredients, it tastes like a cross between a peanut butter pie and a chocolate eclair… but requires zero baking!

Perfect for potlucks, summer gatherings, or when you need a show-stopping dessert fast.

Why You’ll Love This Recipe

🥜 No oven needed—ready in 15 minutes + chill time
💛 Only 6 pantry staples
💸 Costs under $8—feeds 12 generously
🌾 Naturally nut-free? No—but easily adaptable (see notes)

Ingredients You’ll Need

(9x13-inch dish)

For the Base & Layers:

1 (14.4 oz) box graham crackers (~16 full sheets, broken to fit pan)

For the Peanut Butter Filling:

1 (3.4 oz) box instant vanilla pudding mix
2 cups cold milk
1 (8 oz) block cream cheese, softened
1 cup creamy peanut butter
1 tsp vanilla extract

For the Chocolate Topping:

1 (16 oz) container frozen whipped topping (like Cool Whip), thawed
1½ cups semi-sweet chocolate chips, melted
¼ cup milk or heavy cream (to thin ganache)

💡 Pro Tips:
Use full-fat cream cheese—low-fat versions make filling runny.
Chill at least 4 hours (overnight is best)—filling firms up beautifully.
Break graham crackers to cover bottom completely—no gaps!