When I think about my favourite birthday party treats growing up, Jelly Slice is ALWAYS high up on the list and I promise you this is the BEST Jelly Slice Recipe you will ever make! After all what is there not to love about it when you’ve got a yummy buttery base, tangy cheesecake filling and then the sweet jelly topping – yum!
I’ve made a few versions of Jelly Slice in the past including this Strawberry Jelly Slice and my Christmas Jelly Slice, but I have to admit this traditional Jelly Slice recipe is my favourite. I can remember being a little nervous the first time I attempted it as the thought of creating three perfect layers was a little intimidating. However I PROMISE you that this is really easy to achieve and not only does it look great, but it tastes amazing as well.
The secret to achieving perfect layers with your Jelly Slice, is to make sure you let the cheesecake layer cool in the fridge and begin to set before pouring the COOLED jelly over the top. If you try and pour jelly which is still a little warm over the cheesecake layer which hasn’t chilled for long enough you are going to end up with ‘holes’ filled with jelly in your slice – this doesn’t change the taste but can be an issue when you try to cut it into neat little squares.
While I’m all for sticking with the classics, you REALLY need to also try this Christmas Jelly Slice recipe (Thermomix instructions also included) – how fun does it look?!
The BEST Jelly Slice Recipe
- 250 g of Marie biscuits - or any other plain biscuit
- 180 g of melted butter
- 395 g can of condensed milk
- 2 1/2 teaspoons of gelatine
- 3/4 cup of boiling water
- 2 Lemons – juiced
- 1 packet to strawberry jelly
- Boiling Water as per jelly packet instructions
- An extra 1 teaspoon of gelatine – for the jelly top
Line the base and the sides of a slice tin with baking paper, making sure you leave plenty hanging over the sides.
Crush the biscuits until they resemble fine breadcrumbs. You can use a rolling pin or food processor.
Add the melted butter to the crushed biscuits and mix until combined. Pour the mixture into the lined slice tine and press down with the back of a metal spoon and place in the fridge to chill.
In the meantime, add 2 1/12 teaspoons of gelatine to 3/4 of a cup of boiling water and stir until it has dissolved. Place the condensed milk into a bowl and while whisking, add the dissolved gelatine mixture and the lemon juice. Continue to whisk until mixture is smooth and has combined.
Remove the set biscuit base from the fridge and pour over the condensed milk layer. Place back in the fridge, until it just begins to start to set – approximately 30 - 45 minutes
While the slice is chilling, you can make the strawberry jelly as per the packet instructions – adding an extra teaspoon of gelatine. Allow the jelly to cool until it has reached room temperature.
Remove the slice from the fridge and carefully pour the jelly over the slice and place it back in the fridge to completely set approximately 6 hours – overnight is best.
Remove the set slice from the fridge and using a hot knife, cut into squares.
If it's possible, leave this slice to set overnight before cutting.
Use a sharp knife to help cut through the layers easily.
The Best Jelly Slice Recipe – Thermomix Instructions
- Line the base and the sides of a slice tin with baking paper, making sure you leave plenty hanging over the sides.
- Place the biscuits in the bowl and crush for 5 seconds on speed 9.
- Add the butter and heat for 3 minutes on 80 degrees speed 2.
- Remove biscuit mixture from the bowl and pour into the lined tray. Push the mixture down with a metal spoon to create a flat surface. Place in the fridge for 30 minutes to set.
- To make the filling, combine the gelatine in a jug with the boiling water and allow to cool slightly. In a clean bowl, add the lemon juice and condensed milk and mix for 45 seconds on speed 4. After 5 seconds, remove the measuring cup and carefully pour the gelatine mixture in. Remove the set slice base from the fridge and pour over the filling.
- Put back into the fridge for 30 minutes.
- In a clean Thermomix bowl, add the hot water and heat for 3 minutes on 90 degrees speed 2.
- Add the jelly crystals and one extra teaspoon of gelatine and stir until they have dissolved. Pour jelly into another bowl and allow it to cool until it has reached room temperature.
- Remove the slice from the fridge and carefully pour the jelly over the slice and place it back in the fridge to set for approximately 4 hours – overnight is best.
- Remove the set slice from the fridge and cut into squares.
Love Slice Recipes? Here is a collection of my favourite slice recipes that can be made both regularly and in a Thermomix!!