Lemon Treacle Slice

Lemon Treacle Slice – if you have not tried it you really must!! I have been watching the series “Gordon Ramsey behind bars”, and was instantly interested in finding out how to re-create the main featured recipe in his series..Which was the Lemon Treacle Slice.

It looked lovely, with a digestive butter base, and a rich sweet tart filling.

It looked amazing and i just really wanted to give it a try. The recipe is well explained and straightforward to follow. I found the recipe along with the picture on the Channel 4 website.

The lemon treacle slice recipe created by Gordon Ramsay is a new favorate of mine, its very very sweet, a nice soft consistanceywith a slight sharp taste of tangy lemon ;-)

“Gordon Ramsay made this sticky, sweet treat for Caffé Nero with the help of some prisoners in Gordon Behind Bars”.

My tip: Make sure you crumb the bread enough, mine had a few larger pieces in lol ;-)

Makes around 8-10 bars

Lemon Treacle Slice


For the base

  • 300g digestive biscuits
  • 150g butter

For the topping

  • 675g golden syrup
  • 90g butter
  • 100ml double cream
  • 225g white breadcrumbs
  • 5 egg yolks
  • Zest and juice of 1 lemon
  • 1 tbsp Lemon curd

For the glaze

  • 50g icing sugar
  • juice of 1 lemon juice


  1. To make the base, pre-heat the oven to 160oC, fan 140oC, gas mark 3.
  2. Place the biscuits in a food processor and blend until you have a smooth crumb.
  3. Melt the butter, then stir into the biscuits. Press the biscuit mixture firmly into the base of a 20cm square tin which has been lined with baking parchment. Allow to chill for at least half an hour.
  4. To make the topping, put the golden syrup into a saucepan along with the butter and allow to melt gently without boiling.
  5. Once the butter has melted take the pan off the heat and stir in the cream, breadcrumbs, egg yolks, lemon zest and juice. Stir well.
  6. Once the base has cooled, spread the lemon curd onto the base. Pour over the breadcrumb filling and then place into the oven to cook for 25-30 minutes or until firm to the touch.
  7. Remove from the oven and allow to cool completely before cutting into rectangular slices.
  8. To glaze the slices, mix the icing sugar with enough lemon juice to make a thick paste. Place it into a piping bag and pipe onto the top of your bars, or drizzle the glaze over with a spoon.


  1. sue

    Thank you for post the famous Lemon Treacle recipe. Just one question. Are the breadcrumbs fresh or can I use dry ones like the ones bought from the store? Thank you, I look forward to trying out this recipe!

    • abi

      Hi Sue
      Thankyou for the comment,
      Its totally down to personal preference on the breadcrumbs either will work well ;-) I use fresh as many shops near me do not sell the dry ones.. however my friends in the city use dry and have said it still taste amazing.
      Hope you enjoy baking this recipe x

  2. suzanne

    Loved watching Gordon deal with the prima dona prison inmates! Can corn syrup be used in place of golden syrup in this recipe? What is the difference between these two syrups?

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