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This coffee icebox cake has creamy layers, bold espresso flavor, and a soft chocolatey top—no baking required. The refrigerator does all the hard work while the graham crackers soften into tender, cake-like layers. Whipped cream, coffee-dipped graham crackers, and cocoa powder make this an easy, elegant dessert.
Why You’ll Love It
- No baking required — the refrigerator creates the soft, cake-like layers.
- Bold coffee flavor — instant espresso gives the whipped cream a rich, mellow flavor.
- Easy layered assembly — everything is layered directly in a 9×13-inch baking dish.
- Better after chilling — extra time in the refrigerator makes the slices firmer and neater.
Ingredient Notes
Use heavy whipping cream that is good and cold. Keep it in the coldest part of the refrigerator until ready to whip. Cold cream whips faster and holds its shape better.
For the instant espresso mix, use the instant espresso powder or crystals that dissolve easily. Don’t swap in brewed coffee here; concentrated espresso flavor is needed without Adding more liquid. Eight tablespoons sounds like a lot when measured out, and it is a lot, but it gets divided between the cream and the soaking mixture.
The graham crackers can be plain honey grahams. Nothing fancy. Thicker ones hold up a little better while getting them into the pan. Some will crack. Some will break in the coffee mixture. Life goes on.
As for cocoa powder, unsweetened is what you want for that slightly bitter finish on top. A little sieve or small strainer works well for dusting.
Ingredients
- 20 to 25 graham crackers, plain honey grahams
- 4 cups heavy whipping cream, chilled very well
- 1/2 cup powdered sugar
- 1/4 cup milk
- 8 tablespoons instant espresso mix, divided—yes, tablespoons
- 2 tablespoons cocoa powder, for that pretty bittersweet top
- 2 teaspoons vanilla extract
Instructions
In a large bowl, combine 3 tablespoons of the instant espresso mix with the chilled heavy whipping cream. Let the espresso dissolve before mixing.
Add the powdered sugar and vanilla extract, then beat with an electric mixer on medium speed until stiff peaks form. The cream should stand up when the beaters are lifted. Keep an eye on it near the end—whipped cream can go from lovely to grainy faster than seems fair.
In a shallow dish, stir together the milk and the remaining 5 tablespoons instant espresso mix. This is the graham cracker dipping mixture, and it will smell wonderfully like a coffee shop with boxes of crackers and a slightly sticky counter.
Place one graham cracker in the milk-and-espresso mixture and let it soak for just a few seconds, then transfer it to the bottom of a 9×13-inch baking dish. Don’t leave it in there too long or it will fall apart. Repeat with more soaked graham crackers until you have one complete layer across the bottom of the dish, breaking crackers as needed to fill in the spaces. The patchwork pieces will not show later, so don’t fuss.
Spoon one-third of the espresso whipped cream over the graham cracker layer and spread it gently all the way to the edges. An offset spatula works well, but a regular spoon works fine.
Make a second layer of graham crackers by soaking them for a few seconds in the espresso mixture and arranging them over the cream. Spread another one-third of the whipped cream over that layer without dragging crumbs through the cream. A few crumbs are not the end of civilization, though.
Add one final layer of soaked graham crackers, then spread the remaining one-third of the espresso whipped cream over the top. Smooth it gently, but don’t chase perfection. This cake softens and settles in the refrigerator anyway, which is sort of the point.
Cover the dish tightly with plastic film and refrigerate it for at least 3 hours, though overnight is preferable. The longer chill gives the graham crackers time to turn tender and cake-like. If you want a firmer texture, place the chilled cake in the freezer for 1 hour before serving.
Just before serving, dust the top with the cocoa powder. Slice it cold and serve right away.
Variations
Chocolate curls can be added on top for a pretty finish. A vegetable peeler can be used to make them, though the result may look less like elegant curls and more like something swept out of a pencil sharpener.
The basic coffee-and-cocoa version is the one to come back to, though. Extra additions between the layers can make it too busy, with too many flavors and too much texture. The graham crackers, espresso cream, and cocoa are enough. Sometimes enough is actually enough.
For a holiday table, it’s especially nice because it can be made ahead and ignored until dessert. Keeping the oven free is always helpful.
Storage & Reheating
This keeps covered in the refrigerator for about 3 days, though the layers get softer as time goes on. The coffee flavor seems more settled on the second day, and the graham crackers are fully tender. For a firmer texture, serve straight from the freezer after that one-hour chill.
There is no reheating here, obviously. Please don’t put this in the microwave. Serve it cold from the refrigerator, or let it sit out for a few minutes if it has been frozen and is too firm to slice easily.
If there are leftovers, keep the pan tightly covered. The whipped cream can pick up refrigerator smells, so avoid a faint hint of leftover onion dip.
Final Notes
This is an ideal dessert for warm weather: cool, quiet, and already handled in the refrigerator. A cold square of coffee icebox cake after dinner, with cocoa dusting the fingertips and the kitchen finally cooling off, is not nothing.
Cool and Creamy Coffee Icebox Cake
Ingredients
- 20 to 25 graham crackers plain honey grahams
- 4 cups heavy whipping cream chilled very well
- 1/2 cup powdered sugar
- 1/4 cup milk
- 8 tablespoons instant espresso mix divided
- 2 tablespoons cocoa powder for dusting the top
- 2 teaspoons vanilla extract
Instructions
- In a large bowl, combine 3 tablespoons of the instant espresso mix with the chilled heavy whipping cream and let the espresso dissolve before mixing.
- Add the powdered sugar and vanilla extract, then beat with an electric mixer on medium speed until stiff peaks form and the cream stands up when the beaters are lifted.
- In a shallow dish, stir together the milk and the remaining 5 tablespoons instant espresso mix to make the graham cracker dipping mixture.
- Place one graham cracker in the milk-and-espresso mixture for just a few seconds, transfer it to the bottom of a 9x13-inch baking dish, and repeat with more soaked graham crackers until the bottom is covered, breaking crackers as needed to fill gaps.
- Spoon one-third of the espresso whipped cream over the graham cracker layer and spread it gently all the way to the edges.
- Make a second layer of graham crackers by soaking them for a few seconds in the espresso mixture and arranging them over the cream, then spread another one-third of the whipped cream over the crackers.
- Add one final layer of soaked graham crackers, then spread the remaining one-third of the espresso whipped cream over the top and smooth it gently.
- Cover the dish tightly with plastic film and refrigerate for at least 3 hours, preferably overnight, or place the chilled cake in the freezer for 1 hour before serving if you want a firmer texture.
- Just before serving, dust the top with the cocoa powder, then slice the cake cold and serve right away.