No-Bake Chocolate Biscuit Cake
No-bake chocolate biscuit cake with golden syrup, dried fruit and nuts. Crumbs and chunks, a poured chocolate top, chilled firm. No oven, 16 squares, ready in 2 hours.
Melted chocolate, butter and golden syrup, stirred through broken biscuits, pressed into a tin and topped with a shiny chocolate lid. The fridge does the baking. Crunchy, fudgy, rich, and kids can make most of it themselves.
Recipe inspiration
It's the cake for when the oven's off: a hot week, a kitchen mid-renovation, a school bake sale you remembered at 9 pm. Everything comes from the pantry, it takes twenty minutes of hands-on time, and it's better made a day ahead. Give the bashing job to the kids. Go nuts with the mix-ins; the method stays the same.
About this dish
Almost every country has one. Scotland calls it tiffin; Ireland and England, chocolate biscuit cake or fridge cake. Germany's is Kalter Hund, "cold dog", traced to a 1920s Bahlsen recipe that layered chocolate with packet biscuits. Sweden has radiokaka, the Netherlands Arretjescake, Denmark kiksekage. Here in Australia it's cousin to the hedgehog slice and the New Zealand fudge cake.
It has royal fans too. Chocolate biscuit cake was a favourite tea cake of Queen Elizabeth II, and Prince William asked for one as his groom's cake at his 2011 wedding.
What you taste: snapping biscuit in a dense, fudgy chocolate that softens as it warms, chewy dried fruit, toasty nuts, and the caramel note of golden syrup.
Additions & substitutions
- Vegan: dairy-free dark chocolate, a plant-based block butter, and biscuits made without butter or milk (check the label; many plain supermarket biscuits are). Golden syrup is already vegan.
- Golden syrup: honey, maple syrup or rice malt syrup. Honey is the strongest flavour; rice malt the mildest.
- Gluten-free: gluten-free biscuits plus 50 g (1½ cups) gluten-free cornflakes for crunch.
- Rocky road: swap the dried fruit for 100 g mini marshmallows; cool the chocolate 15 minutes first so they don't melt.
- Hedgehog-slice style: swap the fruit for 40 g (½ cup) desiccated coconut, and sprinkle more on the chocolate lid.
- Nuts: pistachios for colour, almonds for crunch, walnuts or pecans for something softer. Toast them first. See nuts.
- Grown-up: soak the fruit in 2 tbsp brandy or rum for an hour; add a pinch of flaky salt and the zest of an orange.
- Keep the total mix-ins (biscuits included) around 400 to 450 g so the chocolate still binds it.
Expert tips
Shopping
- Plain, dry, sweet biscuits: Marie, Arrowroot, Nice, digestives or rich tea. Cream-filled and chocolate-coated biscuits go soft and greasy.
- Dark chocolate around 50 to 70% cocoa for the dark half. Higher than 70% and it sets bitter and crumbly against the sweet biscuits.
- Golden syrup in a tin or squeeze bottle. Weigh it straight into the bowl; a cup measure leaves a third behind.
Preparing
- Crumbs and chunks. Bash the biscuits in a zip-lock bag until you have roughly half thumbnail-sized pieces and half crumbs. All chunks and it falls apart; all crumbs and it's a dense brick.
- Melt gently. Pull the bowl off the heat with a few lumps left and stir until they go. Overheated chocolate turns thick and grainy and won't coat the biscuits.
- Press hard. A potato masher or the base of a glass packs it down so there are no air pockets for it to break along.
Make ahead, or for a crowd
- Make it a day ahead. It cuts cleanest after a night in the fridge.
- Keeps 1 week in an airtight container in the fridge; up to 1 month in the freezer, cut and layered with baking paper. Thaw 20 minutes on the bench.
- For a party, double it in a 20 x 30 cm slice tin and cut 32 fingers.
Serving suggestions
- Cut small with a pot of tea or a strong coffee.
- Warm-weather dessert after sticky ribs off the barbecue.
- Wrapped in baking paper and string as a gift, next to a bottle of chocolate liqueur.
- More treats: homemade Bounty, homemade Snickers and Healthy snacks.
No-Bake Chocolate Biscuit Cake
Published 2 Oct 2026 · Updated 3 Oct 2026
Ingredients
- 150 g (5 oz) dark chocolate, chopped
- 150 g (5 oz) milk chocolate, chopped
- 120 g (½ cup) unsalted butter, cubed
- 120 g (⅓ cup) golden syrup
- 250 g (9 oz) plain sweet biscuits, such as Marie, Arrowroot or digestives
- 100 g (⅔ cup) dried fruit, such as chopped apricots, raisins or dried cherries
- 60 g (½ cup) nuts, such as pecans, almonds or pistachios, roughly chopped (optional)
- Sprinkles, coconut or chopped nuts, to decorate (optional)
Method
- Line a 20 cm square tin with baking paper, leaving it hanging over two sides as handles.
- Bash the biscuits in a zip-lock bag with a rolling pin until about half are thumbnail-sized pieces and half are crumbs. Tip into a large bowl with the dried fruit and nuts.
- Melt both chocolates, the butter and the golden syrup in a heatproof bowl over a pan of barely simmering water, bowl not touching the water. Stir now and then. Take it off the heat while a few lumps remain and stir until smooth and glossy. (Microwave: 30-second bursts on medium, stirring between.)
- Reserve about a quarter of the chocolate mixture (roughly 130 g, or ½ cup) in a jug and leave it at room temperature.
- Stir the rest into the biscuits until every piece is coated and shiny, with no dry crumbs at the bottom.
- Press into the tin, firmly and evenly, with a potato masher or the back of a spoon. It should feel solid, with no loose bits at the corners.
- Pour the reserved chocolate over the top and tilt the tin so it runs into the gaps and covers the surface. Scatter any decorations on now.
- Chill for at least 2 hours, until firm right through and the top no longer looks wet.
- Cut after 10 minutes out of the fridge: lift it out by the paper and slice into 16 squares with a large knife dipped in hot water and wiped dry between cuts.
Notes
- Crumbling when you cut it? Too cold, or not pressed hard enough. Let it sit 10 to 15 minutes on the bench; next time press harder and pour the top coat right into the gaps.
- Too soft to hold a square? Not chilled long enough, or a hot day. Back in the fridge for an hour; serve straight from the fridge in summer.
- Chocolate thick and grainy? It overheated or caught a drop of water. Stir in 1 tbsp of hot, freshly boiled water or a splash of oil until it loosens, then carry on.
- Biscuits soft and cakey? Filled or chocolate-coated biscuits, or they sat too long in hot chocolate. Use plain dry biscuits and stir only until coated.
- Reserved chocolate set in the jug? 10 seconds in the microwave, stir, pour.
- White bloom on top after a few days? Fat or sugar rising as it warmed and cooled. Harmless; keep it cold and airtight.
Sources
- "Tiffin (confectionery)", Wikipedia, https://en.wikipedia.org/wiki/Tiffin_(confectionery)
- "Biscuit cake", Wikipedia, https://en.wikipedia.org/wiki/Chocolate_biscuit_cake
- "Hedgehog slice", Wikipedia, https://en.wikipedia.org/wiki/Hedgehog_slice
- "Rocky road crunch bars", Nigella Lawson, https://www.nigella.com/recipes/rocky-road-crunch-bars
- "No bake fridge cake", BBC Food, https://www.bbc.co.uk/food/recipes/chocolate_fridge_cake_23018
- "Chocolate fridge cake", BBC Food, https://www.bbc.co.uk/food/recipes/chocolatefridgecake_74814
