Gingerbread Chocolate Honeycomb (Cinder Toffee)

Name: Gingerbread Chocolate Honeycomb (Cinder Toffee)
Cuisine: European, American
Ingredients: 200g (1 cup) white sugar; 4 tbsp light syrup (see note 1); 1 tbsp bicarbonate (baking soda); 1 tbsp gingerbread spice (see below & note 2); 100g (3½ oz) milk chocolate; 100g (3½ oz) dark chocolate; broken/crushed gingerbread; 2 tbsp cinnamon; 1 tbsp ground ginger; 1 tbsp ground cardamom; 1 tsp ground cloves