Key Lime Pie Bonbons


  • 800g Valrhona Macaé dark chocolate couverture
  • 6g Roxy & Rich Moldovite coloured cocoa butter
  • 2.7g Pectin
  • 85g Lime juice
  • 21g Lemon juice
  • Rind of half a lime
  • 170g Sugar
  • 46g Confectionery glucose syrup
  • 4g Tartaric acid
  • 6g Leaf gelatine (3 sheets)
  • 30g Dextrose
  • 1/2 Premium vanilla pod
  • 19g Water
  • 6g Invert sugar paste
  • 120g Valrhona Ivoire
  • 15g Cocoa butter
  • 25g Browned butter
  • 110g Gluten free cookies/biscuits - ground to a crumb
  • 15g Roxy & Rich Snow White
  • 3g Roxy & Rich Amber Honey
  • Green/Blue Swirl Transfer Sheet


Dessert flavoured chocolates are all the rage right now, so give your customers exactly what they want with our Key Lime Pie bonbon recipe! With layers of zesty lime gel, fluffy marshmallow and a buttery biscuit base, this recipe ticks all the boxes for a fresh, trend-led addition to your spring and summer chocolate range. We made it gluten-free by using free from gluten biscuits, but you can use any biscuit you like!

Decoration and Shelling


For the Lime Gel 

For the Marshmallow filling


For the Biscuit Base

Step 1 - Making the Shells

  1. Using a spray gun, paint a coat of Roxy & Rich Green Moldavite cocoa butter directly into the centre of the cavity. Before this sets, adjust the trigger on the spray gun in such a way that only air is released; this will push the cocoa butter up to the sides of the cavity and give a wave effect as the cocoa butter is rippled by the air. Repeat until each cavity is sprayed and leave to crystalise.
  2. Spray 2 layers of custom mixed cocoa butter into the mould and completely cover each cavity evenly. Leave to crystalise – preferably overnight, before shelling with tempered Macae.

Step 2 - Making the Gel

  1. Measure all ingredients into separate dishes using precise scales, so that they are all at ready for use.
  2. Combine 30g sugar and pectin with a small whisk, ensuring they are thoroughly mixed. Set aside for later.
  3. Combine the lime juice, lemon juice and rind in a pan and bring to around 80 degrees. Add 30g of the sugar and the pectin gradually whilst continuously whisking to avoid any lumps forming.
  4. Bring to the boil before adding the glucose. Let the glucose fully melt in the mixture before adding 80g sugar in 2-3 parts while stirring continuously.
  5. Heat the mixture to 106 degrees. Then, turn to a low heat and add the tartaric acid solution. Stir for around 20 seconds, until fully mixed.
  6. Remove from heat and pour into a bowl. Cover with clingfilm and leave in the fridge to fully cool.
  7. Once cooled, chop the gel up and pour into a jug. Blend with a hand blender until the gel is a consistency that can be piped into shells.
  8. Using a piping bag, pipe a small amount of gel into the top of each cavity and set it aside while you make the marshmallow filling.

 Step 3 - Making the Marshmallow filling

  1. Place the gelatine sheets into a pan of water and leave to soak. Measure out all ingredients into separate dishes using precise scales, so that they are all prepared and ready to go when you need them.
  2. After the gelatine has soaked for around 20 minutes, drain and squeeze out excess water. Warm on a low heat until gelatine is fully melted and set aside.
  3. Pour the lemon and water into the sugar and dextrose, then warm on a low heat until all sugar is dissolved and add the vanilla seeds.
  4. Pour invert sugar and glucose into a mixer bowl and whisk for a few minutes, then add the warmed sugar mixture and whisk on a high heat for a minute.
  5. While the mixer is still whisking, pour the warmed gelatine mixture into the bowl and continue to whisk for 2 minutes.
  6. Be careful not to overbeat, as you want to be able to pipe the mixture into the mould and it level off nicely.
  7. Allow the mixture to cool to low 30’s while the mixer whisks on the lowest heat to keep the marshmallow moving.
  8. Pour into a piping bag and pipe into your mould on top of the lime gel, making sure to leave about 3-4mm for the cookie base and capping off.
  9. Set aside to set while you make the biscuit base.

Step 4 - Making the biscuit base

  1. Start by grinding the cookies or biscuits into a fine crumb. You can do this with a pestle and mortar, a bowl and a flat edged rolling pin, or with a blender.
  2. Melt the chocolate and cocoa butter to around 35 degrees. Separately, melt 25g butter until it browns
  3. Pour the chocolate and browned butter over the biscuit crumb and mix well, before pouring into a jug and blending with a hand blender until smooth.
  4. Cool to low 30’s and pipe a small amount into each cavity. If this does not level straight away, give the mould a little shake to distribute the mixture evenly.
  5. Allow to set before retempering your leftover Valrhona Macae and cap your chocolates with the trasfer sheet.
  6. Leave to set for at least an hour before turning out of the mould.

Enjoyed this recipe? Try making scrumptious Lemon Meringue Pie bonbons by swapping the lime gel for lemon gel, and decorating with Roxy & Rich Coloured Cocoa Butter in Yellow Jasper!

Approximate costs

Makes 56 chocolates
makes 2 trays of 28 chocolates
Please note: All costs are based on current Keylink List prices and up-to-date supermarket prices for non-Keylink products. These are given in good faith. These recipe costs could be lower if you benefit from Keylink discounts.