Classic Graham Cracker Icebox Cake

Name: Classic Graham Cracker Icebox Cake
Prep time: 25 min
Total time: 25 min
Yield: 9 servings
Cuisine: American
Ingredients: 3 cups (720 ml) cold heavy cream (at least 36% fat), straight from the fridge; ½ cup (60 g) powdered sugar, sifted through a fine-mesh sieve; 2 teaspoons (10 ml) pure vanilla extract; ¼ teaspoon (1½ g) fine salt; 14 sheets (210 g) graham cracker sheets (about 5 × 2½ inches each), 3 sheets per layer left whole; 4 or 5 sheets total snapped in half crosswise; 3 ounces (85 g) bittersweet or semisweet chocolate bar, at room temperature, shaved into curls with a vegetable peeler

From the MyKitchenBank Kitchen

Crisp graham crackers and vanilla whipped cream turn into tender, sliceable cake after a night in the fridge. It needs no oven and only five ingredients. Chocolate shavings finish the top.

Prep: 25 min
Cook: —
Wait: 8 hr 10 min
Total: 8 hr 35 min
Makes: 1 8-inch square cake (9 squares)

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Ingredients

9 servings

For the whipped cream
3 cups (720 ml) cold heavy cream (at least 36% fat), straight from the fridge
½ cup (60 g) powdered sugar, sifted through a fine-mesh sieve
2 teaspoons (10 ml) pure vanilla extract
¼ teaspoon (1.5 g) fine salt
For assembly
14 sheets (210 g) graham cracker sheets (about 5 × 2½ inches each), 3 sheets per layer left whole; 4 or 5 sheets total snapped in half crosswise
3 ounces (85 g) bittersweet or semisweet chocolate bar, at room temperature, shaved into curls with a vegetable peeler

Equipment (8)

8×8-inch (20×20 cm) square baking pan or dish
Large mixing bowl, chilled
Electric hand mixer or stand mixer with whisk attachment
Rubber spatula or small offset spatula
Fine-mesh sieve
Vegetable peeler (for chocolate shavings)
Plastic wrap
Sharp knife for slicing

Steps

Before you start

Plan ahead: the cake needs at least 6 hours in the fridge, and overnight (8 hours) gives the best texture.
Chill the mixing bowl and beaters in the freezer for 15 minutes so the cream whips faster and holds its shape.
Keep the cream refrigerated until the moment you whip it.
Use standard graham cracker sheets, about 5 × 2½ inches (12.5 × 6 cm). If yours are a different size, trim them to make 3 neat rows per layer.

1
Chill the tools
- Place a large mixing bowl and the whisk or beaters in the freezer for 15 minutes.
- Meanwhile, sift the powdered sugar through a fine-mesh sieve into a small bowl to remove lumps.
- Snap 4 or 5 of the graham cracker sheets in half crosswise so you have 9 half-sheets (about 2½ × 2½ inches), and keep 3 of the remaining whole sheets per layer set aside.
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Ready when: Bowl feels icy to the touch
Tip: Do not sift the sugar straight into the cream; lumps will not whisk out.
2
Whip the cream
- Pour the cold heavy cream into the chilled bowl.
- Beat on medium speed for about 1 minute until it begins to thicken, then add the sifted powdered sugar, vanilla and salt.
- Increase to medium-high and beat for 2 to 3 more minutes until stiff peaks form.
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Ready when: When you lift the beaters, the peak stands straight up and the cream holds its shape on a spatula without slumping
Tip: Stop as soon as stiff peaks form. Over-whipped cream turns grainy and starts to become butter.
3
Prepare the pan
- Spread about ½ cup (a scant 120 g) of the whipped cream in a thin, even layer across the bottom of an 8×8-inch (20×20 cm) pan.
- This keeps the first layer of crackers from sliding and helps them soften evenly.
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Ready when: Pan bottom is fully covered with a thin film of cream
4
Lay the first crackers
- Arrange 3 whole graham cracker sheets side by side across the pan, with the long sides touching and running top to bottom.
- Fill the remaining 2½ inches (6 cm) at the end with 3 half-sheets in a row, so the layer covers the pan with no big gaps.
- Trim or break pieces as needed to fit.
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Ready when: Crackers cover the cream in a snug, even layer
Tip: Small gaps are fine; the crackers expand a little as they soften.
5
Build the layers
- Spread about 1½ cups (roughly 350 g) of whipped cream over the crackers, all the way to the edges.
- Sprinkle with about one-third of the chocolate shavings.
- Add a second layer of 3 whole and 3 half crackers, then another 1½ cups cream and one-third of the chocolate.
- Add a third layer of crackers.
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Ready when: Three cracker layers sit in the pan with cream between them
Tip: Dollop the cream over the crackers and spread gently; dragging the spatula can shift or crack them.
6
Top the cake
- Spread all the remaining whipped cream (about 1½ cups) over the top layer of crackers.
- Smooth it with the back of a spoon or an offset spatula, or make soft swoops.
- Leave the rest of the chocolate for after chilling so the shavings stay crisp and dark.
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Ready when: Top is fully covered and no crackers peek through
7
Chill until soft
- Cover the pan loosely with plastic wrap (tent it so it does not touch the cream) and refrigerate for at least 6 hours, ideally 8 hours or overnight.
- The moisture from the cream soaks into the crackers and turns them into soft cake layers.
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Ready when: A knife slides through the crackers with no resistance and no crisp, crunchy bite remains
Tip: If a cracker in the middle still snaps when you cut it, give it another 2 hours.
8
Garnish and slice
- Scatter the remaining chocolate shavings over the top.
- Dip a sharp knife in hot water and wipe it dry, then cut the cake into 9 squares, wiping the blade between cuts.
- Lift out with a small spatula and serve cold.
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Ready when: Slices hold clean, layered edges
Tip: Add the chocolate just before serving; if it sits on the cream for hours it can get soft and dull.

Good to know

Tips

Use cream with at least 36% fat; lighter whipping cream will not hold up between the layers.
Make the cream layers generous and spread them right to the edges so every cracker gets moisture.
Cut with a hot, dry knife and wipe it clean between cuts for neat squares.
For a stabilized cream that holds for longer, beat in 2 tablespoons (30 g) of mascarpone or cream cheese at the start.

Make ahead

"Assemble up to 2 days ahead and keep covered in the fridge. Add the chocolate shavings just before serving."

Storage & reheating

"Refrigerator: covered, up to 4 days; the crackers keep softening, so the texture gets more cake-like each day. Room temperature: no more than 1 hour. Freezer: freeze the covered pan, or individual slices wrapped well, for up to 1 month. Thaw in the fridge for 4 hours or serve partly frozen like an ice cream cake. No reheating is needed."

Substitutions

graham cracker sheets (about 5 × 2½ inches each) → chocolate graham crackers or digestive biscuits. Chocolate grahams give a brownie-like flavor. Digestives are less sweet and may need 1 to 2 more hours to soften.
bittersweet or semisweet chocolate bar → mini chocolate chips, crushed toffee bits or fresh berries. Use about ⅓ cup (60 g) of mini chips, or 1 cup (150 g) of berries between layers and on top.
pure vanilla extract → vanilla bean paste. Use the same amount, 2 teaspoons, for more visible specks of vanilla.
powdered sugar → superfine (caster) sugar. Use 6 tablespoons (75 g); beat a little longer so it dissolves. The cream will be slightly less stable than with powdered sugar, which contains starch.