If you love sweet treats but don’t feel like turning on the oven, this Custard Cream No Bake Traybake Slice is the perfect recipe for you! It’s creamy, crunchy, and irresistibly rich — combining the classic flavor of custard cream biscuits with a smooth, velvety filling. Ideal for parties, afternoon tea, or just a cozy night at home, this easy no-bake dessert is bound to impress both kids and adults alike.
Why You’ll Love This Recipe 💛
- No baking required — perfect for warm days or quick dessert cravings.
- Only a few ingredients — simple and budget-friendly!
- Beautifully creamy texture — smooth custard layer with a crunchy biscuit base.
- Great for sharing — cut into squares for the perfect traybake treat!
Ingredients You’ll Need 🧁
Here’s what you’ll need to make this delicious no-bake slice:
- 250 g Custard Cream biscuits (plus a few extra for topping)
- 125 g unsalted butter, melted
- 200 g white chocolate, chopped
- 200 ml condensed milk
- 1 tsp vanilla extract
- 1 packet instant custard powder (about 50 g)
- 100 ml heavy cream
- Optional: white chocolate drizzle or crushed biscuits for decoration
How to Make Custard Cream No Bake Traybake Slice 👩🍳
Step 1: Prepare the Biscuit Base
Start by crushing your Custard Cream biscuits into fine crumbs. You can do this easily with a food processor or by sealing them in a ziplock bag and crushing them with a rolling pin.
Transfer the crumbs to a bowl and mix with the melted butter until well combined.
Press the mixture firmly into a lined 8×8-inch tray or pan, smoothing the surface with the back of a spoon. Place it in the fridge to chill while you prepare the filling.
Step 2: Make the Custard Filling
In a saucepan, melt the white chocolate over low heat. Once melted, stir in the condensed milk and vanilla extract. Remove from heat and let it cool slightly.
In a separate bowl, mix the custard powder with heavy cream until smooth, then pour it into the chocolate mixture. Stir until everything is well combined and the mixture becomes thick and creamy.
Step 3: Assemble the Slice
Pour the custard mixture over the chilled biscuit base, spreading it evenly with a spatula. Tap the pan lightly on the counter to remove any air bubbles.
For an extra touch, crumble a few Custard Cream biscuits on top or drizzle with melted white chocolate for a pretty finish.
Step 4: Chill and Set
Place the tray back in the fridge for at least 3–4 hours, or until fully set. If you want it even firmer, you can pop it in the freezer for about 30 minutes before slicing.
Once set, remove from the tray and cut into neat squares or rectangles.
Tips for the Best Custard Cream Slice 🌟
- Use quality biscuits: The flavor really shines when you use your favorite Custard Cream brand.
- Don’t rush chilling time: Allow enough time for the slice to set — this ensures perfect clean cuts.
- Get creative: Add a thin layer of melted white chocolate on top or sprinkle crushed biscuits for texture.
- Store correctly: Keep your slices in the fridge to maintain that creamy texture.
Serving Ideas 🍽️
This Custard Cream Traybake is wonderfully versatile! You can:
- Serve it with a cup of tea or coffee for an afternoon pick-me-up.
- Enjoy it as a sweet dessert after dinner.
- Wrap pieces individually for lunchbox treats.
- Serve chilled at birthday parties or family gatherings — it’s always a crowd-pleaser!
Storage & Freezing Tips 🧊
- Refrigerate: Store in an airtight container in the fridge for up to 5 days.
- Freeze: You can freeze slices for up to 2 months. Simply wrap them individually and thaw in the fridge before serving.
Variations to Try 🍫
Want to switch things up? Here are some fun ideas:
- Chocolate Custard Cream Slice: Use milk or dark chocolate instead of white for a richer flavor.
- Strawberry Twist: Add a layer of strawberry jam between the base and custard filling.
- Biscoff Version: Substitute Custard Creams with Biscoff biscuits for a caramel-flavored twist.
Final Thoughts 💬
The Custard Cream No Bake Traybake Slice is the ultimate sweet treat for anyone who loves creamy desserts without the hassle of baking. With its buttery biscuit base and silky custard layer, it’s pure indulgence in every bite.
It’s simple, elegant, and guaranteed to disappear quickly — so you might want to make a double batch next time!
Custard Cream No Bake Traybake Slice
Ingredients
Method
- Start by crushing your Custard Cream biscuits into fine crumbs. You can do this easily with a food processor or by sealing them in a ziplock bag and crushing them with a rolling pin.
- Transfer the crumbs to a bowl and mix with the melted butter until well combined.
- Press the mixture firmly into a lined 8×8-inch tray or pan, smoothing the surface with the back of a spoon. Place it in the fridge to chill while you prepare the filling.
- In a saucepan, melt the white chocolate over low heat. Once melted, stir in the condensed milk and vanilla extract. Remove from heat and let it cool slightly.
- In a separate bowl, mix the custard powder with heavy cream until smooth, then pour it into the chocolate mixture. Stir until everything is well combined and the mixture becomes thick and creamy.
- Pour the custard mixture over the chilled biscuit base, spreading it evenly with a spatula. Tap the pan lightly on the counter to remove any air bubbles.
- For an extra touch, crumble a few Custard Cream biscuits on top or drizzle with melted white chocolate for a pretty finish.
- Place the tray back in the fridge for at least 3–4 hours, or until fully set. If you want it even firmer, you can pop it in the freezer for about 30 minutes before slicing.
- Once set, remove from the tray and cut into neat squares or rectangles.
Notes
- Use quality biscuits: The flavor really shines when you use your favorite Custard Cream brand.
- Don’t rush chilling time: Allow enough time for the slice to set — this ensures perfect clean cuts.
- Get creative: Add a thin layer of melted white chocolate on top or sprinkle crushed biscuits for texture.
- Store correctly: Keep your slices in the fridge to maintain that creamy texture.