Recipe makes: 24 bite sized pieces / Prep Time: 15 mins / Cook Time: 20-25 mins / Chill Time: 60 mins

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This recipe is low in protein. Always check with your dietitian that this is suitable for your diet. Free for MSUD.



  • 25g Butter
  • 25g Hard margarine
  • 25g Caster sugar
  • 90g Fate low protein all-purpose mix
  • 1-2 tsp Cold water

Caramel Sauce

  • 100g Light brown sugar
  • 100g Butter
  • 100ml ProZero®


  • 5 x 25g Vitabite® bars, broken into chunks
  • 50g Butter


  1. Pre-heat oven to 200°C/Fan 180°C/Gas Mark 6.
  2. Place butter, hard margarine and caster sugar into a mixing bowl and beat until light in colour and texture.
  3. Fold in Fate Low Protein All Purpose Mix.
  4. Using your hands, mix and squeeze the mixture until it binds together (add water as needed to form a manageable dough).
  5. Transfer to a surface lightly dusted with Fate low protein all-purpose mix. Mix and continue to knead the dough for approximately 30 seconds or until smooth.
  6. Roll out the dough to a thickness of ½ a centimetre and place onto a lightly greased 8’’ x 11’’ baking tray.
  7. Place into pre-heated oven for 20-25 minutes, until pale golden in colour.
  8. Remove from oven and cool on a wire rack.
  9. Place butter and brown sugar into a saucepan over a low heat until butter has melted and sugar has dissolved.
  10. Add ProZero to mixture and simmer for 5-10 minutes, stirring continuously until the mixture has reduced down by approximately a quarter.
  11. Transfer to a bowl or jug and place in the refrigerator for 10 minutes to cool but not set.12.
  12. Pour caramel sauce over shortbread and place into the refrigerator for approximately 30 minutes, or until set.
  13. Add Vitabite chunks and butter to a heatproof bowl. Melt by placing bowl over simmering boiling water, stirring occasionally or melt in the microwave on a low heat.
  14. Spread over top of set caramel sauce and place into refrigerator for approximately 30 minutes, or until set.
  15. Once set, remove from baking tray and cut into squares.


ProZero, Vitabite and Fate low protein all-purpose mix are foods for special medical purposes and must be only be used under strict medical supervision.

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