Nigella Lawson served up delicious Dutch style speculaas gingerbread biscuits with black treacle for the festive season on Nigella’s Amsterdam Christmas.

The ingredients for the speculaas spice are: tbsp ground cinnamon, 1 tsp ground ginger, ¼ tsp ground cloves, ¼ tsp ground nutmeg, ¼ tsp ground coriander, ¼ tsp ground allspice and ¼ tsp ground cardamom.

For the speculaas biscuits: 300g plain flour, plus more for rolling, 1 tbsp speculaas spice (see above), ½ tsp bicarbonate of soda, ¼ tsp fine sea salt, 100g butter, softened, 100g soft light brown sugar, 100g black treacle (plus a little oil for greasing a jug for weighing the treacle in) and 1 large egg, at room temperature.

For the icing (optional): 225g instant royal icing powder.

See more festive recipes by Nigella in her book titled: Nigella Christmas: Food, Family, Friends, Festivities available from Nigella Christmas: Food, Family, Friends, Festivities now.