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Tim Tam Chocolate Slice
Rich, fudgy no-bake chocolate slice made with Australia's most beloved biscuit — irresistible and endlessly popular.
Prep
15 min
Cook
0 min
Servings
20
Difficulty
Easy
★★★★★
4.8(3,420 ratings)#tim-tam#slice#australian#no-bake#chocolate#biscuit#easy
About This Recipe
Tim Tams are Australia's most iconic biscuit — two chocolate malted biscuits sandwiching a chocolate cream, coated in chocolate. This no-bake slice takes Tim Tams and transforms them into the ultimate Australian afternoon tea treat. The result is a dense, fudgy, intensely chocolate slab with a satisfying melt-in-the-mouth texture. It's one of Australia's most shared and clicked recipes.
Ingredients
Serves 20
- 2 packetsTim Tam biscuits(about 400g; or Oreos as substitute)
- 100 gunsalted butter
- 395 gsweetened condensed milk
- 200 gdark chocolate(70% cocoa, chopped)
- 2 tbspcocoa powder
- 200 gmilk chocolate(for the topping)
- 2 tspvegetable oil(for the topping)
Instructions
- 1
Crush the biscuits
Blitz the Tim Tams in a food processor to fine crumbs. Reserve about 30g of coarser crumbs for topping. Transfer the rest to a large bowl.
- 2
Make the filling
Melt the butter, dark chocolate and condensed milk together in a saucepan over low heat, stirring until smooth. Add the cocoa powder and mix well. Pour over the biscuit crumbs and stir until combined.
- 3
Press and chill
Line a 20×30cm slice tin with baking parchment. Press the mixture firmly and evenly into the tin. Refrigerate for 30 minutes.
- 4
Add the topping
Melt the milk chocolate with the vegetable oil (microwave in 30-second bursts, stirring between each). Pour over the slice and spread evenly. Scatter the reserved Tim Tam crumbs over the top. Refrigerate for 2 hours until completely set.
- 5
Cut and serve
Lift out of the tin using the parchment. Cut into small squares with a hot knife. Serve chilled.
Pro Tips
- →
Use a hot knife (briefly run under hot water, then dry) to cut cleanly through the chocolate topping.
- →
Don't substitute Milo or cocoa for the dark chocolate — the richness of real chocolate is essential.
Variations
- •
Peppermint Tim Tam Slice: add a teaspoon of peppermint extract to the filling for a mint-chocolate version.
- •
White Chocolate Topping: use white chocolate instead of milk chocolate for the topping and tint pink for a festive version.
Storage
Refrigerate in an airtight container for up to 1 week. Freezes for up to 2 months.
History & Origin
Tim Tams were created by the Arnott's Biscuit Company in 1964, named by executive Ian Norris after the horse Tim Tam that won the Kentucky Derby that year. They remain Australia's most iconic biscuit brand, with the 'Tim Tam Slam' (sucking coffee through a Tim Tam like a straw) a beloved Australian tradition.
Frequently Asked Questions
Can I use Oreos instead of Tim Tams?
Yes — Oreos work well as a substitute, though the flavour will be slightly different. Tim Tams' chocolate coating and cream centre add extra richness.
Do I need to refrigerate the slice?
Yes — the slice needs to be kept refrigerated due to the condensed milk and butter. It will soften quickly at room temperature.
Nutrition Facts
Per serving (150g) · 20 servings total
Calories185kcal
Protein2g
Carbohydrates22g
Fat10g
Fiber1g
Protein2g
Carbs22g
Fat10g
Time Summary
Prep time15 min
Cook time0 min
Total time15 min
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