Thermomix Lemon Slice

This Thermomix Lemon Slice combines a buttery shortbread base with a zesty lemon curd topping to create a delicious slice perfect for morning or afternoon tea.

This lemon slice is so easy to make. The Thermomix makes light work of the shortbread base, blitzing up the ingredients in just a few seconds.

Then you just need to press the crumbs into a tin, bake it and then pour over the lemon curd topping before baking it again.

The hardest part is waiting for it all to cool so that you can slice it up and start devouring it!

Jump to:

• Why you'll love this recipe
• Ingredients
• How to Make this Lemon Slice
• FAQs and Top Tips
• You may also like these recipes:
• Thermomix Lemon Slice

Ingredients

It's hard to believe but this delicious slice uses just six ingredients!

• Butter
• Caster sugar
• Plain flour
• Rice flour - no rice flour? Don't worry about it, you can just use extra plain flour instead. My Thermomix shortbread recipe uses just plain flour.
• Lemons - don't be tempted to use shop-bought lemon juice here. Fresh lemon juice will give a much better flavour. It takes just a minute or two to juice a lemon using a juicer. Plus, you need the zest from the lemon too.
• Eggs

How to Make this Lemon Slice

This delicious lemon slice has two distinct parts: the shortbread base and the lemon topping.

Before you get started, make sure you pre-heat your oven and line a baking tin with baking paper.

My tin is a 9-inch square and I like to line the entire tin with baking paper with a generous overlap to make it easy to lift out the slice when finished.

Part 1: Make the Shortbread base

Making shortbread in the Thermomix is so super simple! You literally just add all the ingredients, mix for 10 seconds and use the Dough function for another 20 seconds. That's it!

Then tip out the crumbs and press them into your tin. Try to make it as even as possible, but it doesn't need to look too neat and perfect as you will be covering it with the lemon curd topping anyway.

Next prick it all over with a fork (this helps it to cook evenly).

And then bake it in the oven for 20 minutes.

Step 2: Zest and juice the lemons

Before you can make the lemon topping, you need to get the lemon zest and lemon juice ready. There are a couple of ways you can zest your lemons.

I always use my trusty Microplane zester. It is quick and easy and efficient and produces a really fine zest.

(I also use this for grating parmesan, ginger, garlic, nutmeg... - it's one of my favorite kitchen accessories!)

If you don't have one of these, you can use the small side of a box grater or alternatively you can use a vegetable peeler, then whizz the peel up in the Thermomix for a few seconds at speed 10.

For efficient juicing I recommend using a juicer of some sort. I use a simple straight forward manual one like this and as shown in the picture above.

Step 3: Make the lemon topping

To make the lemon topping, all you need to do is add all the ingredients - eggs, sugar, flour, lemon juice and lemon zest - and mix.

Now set it aside while you wait for the base to cook.

Top Tip! While you have egg shells and leftover lemons, this is a great time to give your Thermomix a deep clean with an Egg Shell and Lemon Wash.

Step 4: Assemble and bake the slice

Remove the base from the oven and pour the topping on top of the base.

Do not wait for the base to cool. You need to pour it over the base while it is still hot.

Now carefully return the slice to the oven to cook for a further 20 minutes.

Step 5: Cool the slice

This is the hard part - waiting for it to cool before you can eat it!

Once you remove the slice from the oven, you need to allow it to cool for an hour on the countertop.

Then transfer it to the fridge and chill it for a minimum of 2 hours.

Step 6: Slice the slice!

Once it is chilled, sieve over some icing sugar to make it look pretty and then use a sharp knife to cut it into 16 equal portions.

FAQs and Top Tips

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