Rosie's Virgin Mojito Biscuit Bars recipe - The Great British Bake Off

Ingredients

• 200g unsalted butter
• 100g caster sugar
• 300g plain flour, sifted
• pinch of fine sea salt
• finely grated zest of 4 unwaxed limes
• 2–3 tbsp lime juice
• 75g caster sugar
• 30 mint leaves
• 12 mint leaves
• 3 platinum-grade gelatine leaves
• juice and finely grated zest of 4 unwaxed limes
• 90g jam sugar
• lime green food-colouring paste
• 12g powdered gelatine
• 40g egg white
• 225g caster sugar
• 60g corn or golden syrup
• 500g white chocolate
• 75g 70% dark chocolate