Pfeffernüsse (German spice biscuits)

Pfeffernüsse

• 150 g molasses
• 70 g honey
• 90 g butter
• 550 g plain flour
• 150 g white sugar
• 80 g brown sugar
• 1 ½ tsp ground cardamom
• 1 tsp ground nutmeg
• 1 tsp ground cloves
• 1 tsp ground ginger
• 2 tsp ground cinnamon
• 1 ½ tsp bicarbonate of soda
• 1 tsp ground black pepper
• ½ tsp sea salt
• 2 eggs

Glaze

• 280 g icing sugar
• 1 tbsp rum (optional)
• 30 g hot water