Our most popular Thermomix Lemon & Coconut Slice takes just 15 minutes to prepare. A favourite in school lunchboxes or for morning tea, this simple slice is always a hit!
When we started ThermoBliss back in 2015, we made sure that we shared our absolute favourite recipes first... and it should be no surprise that this Thermomix Lemon & Coconut Slice is one of our oldest and most popular recipes!
And so, of course, after 6 years, it deserved to have a makeover with new photos, tips and tricks!
Just like our Weet-Bix Slice, Jelly Slice and Clinkers Slice, this Lemon & Coconut Slice is an absolute classic that is loved by all who try it!
Why You're Going To Love This Recipe
There's a lot to love about this tangy and sweet slice!
- No-Bake - forget about turning the oven on, simply whip up the base and icing in your Thermomix and chill in the fridge
- Quick & Easy - just 15 minutes prep time is all it takes to make this firm family favourite
- Perfect For Using Up Lemons - got a lemon tree bursting with fruit? This recipe is perfect for that!
- Great For Lunchboxes - an absolute fave in kids lunchboxes... it's sure to be the first to disappear at morning tea
- Freezer-Friendly - make a batch of slice and freeze in an airtight container for up to 3 months. Allow to defrost before consuming.
What You Need
This simple slice is made from just a few basic ingredients:
Please scroll to the recipe card at the bottom for ingredient quantities and the full detailed method.
- plain sweet biscuits - I like to use Arnotts Marie biscuits but you can use any variety of plain sweet biscuits you like (known as cookies in the US).
- sweetened condensed milk - choose the full fat (not skim) version as it sets firmer.
- butter - salted or unsalted is fine.
- lemon juice - fresh lemon juice from lemons (not bottled) is best. For an extra lemony kick, add grated lemon zest to the base.
- coconut - choose fine desiccated coconut (not flakes or shredded)
- icing sugar - choose pure icing sugar for a firmer icing or icing sugar mixture for a softer icing (I prefer pure icing sugar)
Step By Step Instructions
Make The Base
Start by melting the butter in the Thermomix bowl. Add the biscuits and mix until finely crushed (a few small chunks are fine!).
Add the sweetened condensed milk, lemon juice and coconut and mix to combine.
Note: The mixture will be quite sticky at this stage.
Press the mixture very firmly into a baking paper lined tin. You will need to use the flat side of a spoon to spread and press the mixture.
Make The Icing
Place the icing sugar and lemon juice into the Thermomix bowl. Mix until smooth and combined.
If the icing is too runny, add a little extra icing sugar and mix again. Spread the icing over the slice and sprinkle extra coconut over the top (optional).
Expert Tips
I LOVE lemon and so I always add a tablespoon of finely grated lemon zest to the base mixture.
Pure icing sugar will set firmer than icing sugar mixture so I recommend using that. If you find your icing is too runny, add a little more icing sugar and mix again.
Simply add a little more lemon juice and mix again. You want the consistency to be firm but spreadable.
Store in an airtight container in the fridge for up to 1 week or freeze in an airtight container for up to 3 months.
Related Recipes
If you love no-bake slices, then here's 5 more of our all-time favourites:
- Thermomix Hedgehog Slice - that perfect combination of chocolate and biscuits is a match made in slice heaven.
- Thermomix Cookies & Cream Cheesecake - creamy with chunks of chocolate biscuit throughout, this slice doubles as a morning tea favourite or a cheeky late night dessert.
- Thermomix Peppermint Slice - chocolate and peppermint goodness that everyone loves!
- Thermomix Caramello Slice - everybody loves chocolate and caramel, right!?
- Thermomix Clinkers Rocky Road - chunks of Clinkers gives this classic slice a fun new twist.
Thermomix Slices Cookbook
Shop our Thermomix Slices cookbook filled with 31 of our favourite slice recipes.
We’ve included plenty of good old fashioned favourites like hedgehog slice, jelly slice, caramel slice and our famous chocolate brownies. But we’ve also got lots of brand new creations to tempt your tastebuds... think Mars Bar & Malteser Fudge or our Caramello, Malteser and Choc Ripple Slice!
Thermomix Lemon & Coconut Slice
Equipment
- Thermomix
Ingredients
For the base
- 50 g butter chopped
- 250 g plain sweet biscuits like Arnott's Marie
- 395 g sweetened condensed milk
- 15 g lemon juice
- 45 g desiccated coconut
For the icing
- 300 g pure icing sugar
- 30 g of lemon juice
- 25 g extra desiccated coconut to decorate, optional
Instructions
- Line a 28cm x 18cm slice tin with baking paper, making sure to leave paper hanging over the sides.
- Place the butter into the Thermomix bowl and melt on 2 minutes, 60 degrees, Speed 3 or until melted.
- Add the biscuits and crush for 10 seconds on Speed 8.
- Add the sweetened condensed milk, lemon juice and coconut (plus finely grated lemon zest if using) to the bowl and mix on Speed 4 for 15 seconds or until combined. Use your spatula to help scrape the sides of your bowl mid way through mixing.
- Pour the mixture into your prepared slice tin and use the back of metal spoon to spread it across the tin.
- To make the icing, place the icing sugar into the Thermomix bowl and sift by pressing Turbo for 5-10 seconds. Add the lemon juice and mix for 30 seconds on Speed 4.
- Note: If your icing is too thick, add a little extra lemon juice to the mixture until it is a thick but spreadable consistency. If the icing is too runny, add a little more icing sugar and mix again.
- Pour the icing over the top of your slice and sprinkle the extra coconut over the top.
- Place the slice into the fridge for 6 hours (preferably overnight) to allow it to set.
Notes
Nutrition
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