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Puddings · Old-Fashioned Classics

Old-Fashioned Icebox Cake

G By Our Grannies' Kitchen Updated Jul 2026 4.8 (287 ratings)
Old-Fashioned Icebox Cake
Old-Fashioned Icebox Cake
4.8 / 5
8 servings

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Ingredients

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  • 2 ⅛ cups (500 ml) heavy cream, well chilled
  • 3 tbsp powdered sugar, sifted
  • 1 tsp vanilla extract and a small pinch of salt
  • 250 g thin crisp chocolate biscuits, about 36 (dark chocolate digestive thins or Bourbon-type chocolate thins)
  • grated dark chocolate or a dusting of cocoa, to finish (optional)

Method

  1. Whip. Pour the chilled cream into a large bowl with the powdered sugar, vanilla and salt. Whip to soft peaks — it should just hold its shape but flop softly off the whisk. Stop early rather than late.
  2. Anchor. Smear a spoonful of cream in a line down the center of your serving platter — it glues the log in place so it can't skate about while you build.
  3. Stack. Spread each biscuit with about 2 teaspoons of cream and stack into towers of six. Lay the towers on their sides along the cream smear, pressing gently end to end into one long log.
  4. Frost. Spread the remaining cream all over the log — top, sides and ends — so no biscuit peeks through. Rough swirls are exactly right.
  5. Chill. Cover loosely (tented foil or an upturned roasting pan, touching nothing) and refrigerate at least 8 hours, ideally overnight. This step is not optional — it is the recipe.
  6. Slice. Scatter with grated chocolate, then cut on the diagonal at about 45° with a sharp knife to reveal the stripes.
Granny's tip

If a biscuit snaps while you're spreading, don't fuss — cement it back together with a little cream and stack it anyway. After a night in the fridge, nobody will ever find the join.

Tips for perfect stripes

Soft peaks, not stiff

Cream whipped soft and floppy hugs every biscuit and lends the moisture that softens them. Stiff cream leaves gaps — and crunchy biscuits.

Eight hours is the law

The chill is the recipe: overnight, crisp biscuit turns into tender cake. Cut early and you'll find crunch instead of magic.

Cut on the diagonal

Slice at 45° with a sharp knife and every piece shows its zebra stripes — the reveal is half the pleasure.

Questions, answered

Which biscuits should I use for icebox cake in the UK?

You want thin, crisp, plain chocolate biscuits about 3–5 mm thick. Dark chocolate digestive thins work beautifully, as do Bourbon-type chocolate thins or chocolate Oreo Thins. Avoid thick biscuits or cream-filled sandwiches left whole — they take far longer to soften and throw the biscuit-to-cream balance off.

How long does an icebox cake need to chill?

A minimum of 8 hours, and overnight (about 12 hours) is better still. The biscuits need that time to draw moisture from the cream and soften into cake-like layers. It keeps happily for up to 2 days in the fridge, and plenty of families insist it is best on the second day.

Why are my biscuits still crunchy?

Two usual culprits: the cake has not chilled long enough — 8 hours is the true minimum, so check when it actually went into the fridge — or the cream was whipped too stiff. Stiff cream holds its shape against the biscuits instead of settling into full contact with them, so they never take up enough moisture to soften.

Can I make different flavors, like mocha or berry?

Yes. For mocha, dissolve 1 tablespoon of instant espresso powder in 1 tablespoon of the cream, then add it before whipping. For a berry version, tuck thin slices of strawberry or whole raspberries between the biscuit stacks and pile more on top to serve. A splash of brandy or coffee liqueur whipped into the cream is lovely too — and none of these changes the chilling time.

From Granny's Pantry

The know-how behind this recipe:

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