Lemon Delicious Slice: A Thermomix Favourite

Estimated reading time: 5 minutes

Thermomix Lemon delicious slice is a zingy, lemon curd-like custard slice on a baked, buttery shortbread biscuit base. This is a simple Thermomix lemon slice recipe that the whole family will love!

Square image of lemon slice with a flower vase behind on white backgraound

Key Takeaways

Lemon delicious slice is a tangy custard dessert on a buttery shortbread base, perfect for the whole family.
The recipe replaces regular flour with gluten-free flour, ensuring it's safe for those with gluten sensitivities.
You can store the slice in an airtight container in the fridge for about a week
Fresh lemons are crucial for the curd topping; avoid bottled lemon juice for the best flavour.
For more desserts and Thermomix inspiration, connect on social media using #Thermokitchen.

This is one of my favourite retro treats! I have a weak spot for all lemon desserts, actually. I used to make this recipe in my food processor as it was much easier than making it by hand. Now that I have a Thermomix, I no longer own a food processor and happily, this slice is even easier to make in the Thermomix.

Gluten-Free Lemon Delicious Slice

I have a friend who is highly sensitive to gluten and is on a strictly Gluten-free diet. He has a sweet tooth, so I wanted to make a dessert that was safe for him to eat and super delicious! I trialled this recipe, substituting White Wings Gluten-free flour for the regular flour. The recipe was a straight swap between the flours and turned out perfectly. I couldn't find any taste or texture difference between the two slices.

Step-by-Step Lemon Slice

3 Images showing the stages of making the Lemon delicious slice

Two images showing the ingredients and filling for the lemon slice

If you're looking for more desserts, take a look at some of my favourites!

Square image of apple streusel on a white background — Apple Streusel Slice

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Delicious Lemon Slice FAQ

How should the slice be stored?

The slice will need to be stored in an airtight container in the fridge.

How long will the lemon slice keep?

Stored properly in the fridge the lemon slice should last about one week.

What can I substitute for rice flour that is GF?

You can also use cornflour as lon as it is makrked gluten free.

Can I used bottled lemon squeeze?

Please don't use this product. Fresh lemon is really important to make the lemon curd topping really sing.

Can the Lemon Delicious Slice be made Gluten free?

Yes, simply follow the recommendations for a GF version.

Lemon Delicious Thermomix Slice

Julie Carlyle

Lemon Delicious Slice is a zingy curd-like custard slice on a baked, buttery biscuit base. This is a simple Thermomix lemon slice recipe that the whole family will love! #Thermomix #dessert #Lemon #lemonslice

5 from 1 vote

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Prep Time 10

Cook Time 45

Resting time 30

Total Time 1 25

Course Dessert, Retro, Slice, Snack

Cuisine American, Australian, English, New Zealand

Servings slices

Calories 165 kcal

Equipment

Ingredients

80 g sugar
115 g butter cubed
¾ cup plain flour *sub for GF Flour in necessary
30 g coconut
50 g rice flour
300 g caster sugar
55 g cornflour *check GF if required
4 eggs
100 g lemon juice Approx 3 lemons depending on size and juice
1 TBS lemon zest

Instructions

Base

Line a baking tray with paper 20cm x 20cm. Heat oven 180 degrees celcius

Base Slice

Place the sugar in TM Bowl. Mill 10 sec/Speed 9.
80 g sugar
Add the butter to the sugar. Heat 2 min/80 degrees/Speed 2.
115 g butter
Add flour and coconut to TM bowl. Process 10 Sec/Speed 5.
¾ cup plain flour , 30 g coconut, 50 g rice flour
Scrape down bowl. Repeat 10 Sec/Speed 5. Repeat if necessary.
Transfer the biscuit base into prepared tray. Press the crumb down until smooth.
Bake 15-20 minutes or until golden.

Lemon Curd Filling (Without cleaning the bowl!)

Add sugar to TM bowl. Mill 10 Sec/Speed 9.
300 g caster sugar
Add remaining ingredients to TM Bowl. Combine 15 sec/ Speed 5.
55 g cornflour, 4 eggs, 100 g lemon juice, 1 TBS lemon zest
Scrape down the bowl. Heat lemon custard. 7 min/80 degrees/Speed 3
Pour the filling over the biscuit base and return the slice to the oven immediately.
Cook for 15-20 minutes or until the slice is cooked but still has a wobble.
Refrigerated the slice once cooked.
Cut after the slice has been refrigerated.

Notes

The slice will set further once refrigerated.

If you would like to ensure the slice is GF make sure only pure milled sugar is used to dust the slice.

Nutrition

Calories: 165kcalCarbohydrates: 25gProtein: 2gFat: 6gSaturated Fat: 4gCholesterol: 39mgSodium: 61mgPotassium: 26mgFiber: 1gSugar: 17gVitamin A: 212IUVitamin C: 2mgCalcium: 7mgIron: 1mg

Keyword Dessert, Lemon, Lemon Bar, Lemon Slice, Lunchbox, slice, Thermomix Slice

Tried this recipe?Let us know how it was!

Landscape image of lemon slice cut into bars on a cooling rack.

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Happy Cooking

j xx

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