Bourbon Biscuit Dough
• 180g Plain flour
• 40g Islands Cocoa powder
• ½ tsp Fine salt
• 100g Unsalted Butter, at room temperature
• 100g Caster Sugar
• 1 Large Egg, Beaten
Ganache Filling
• 330g 75% Islands Dark Chocolate
• 330ml Double Cream
• 45g Soft Butter