Butter and line an 18cm round, 7cm deep cake tin with greaseproof or parchment paper.

2)Put the flour, bicarbonate of soda and all the spices into a large mixing bowl.

Add the butter and rub it into the flour with your fingertips until the mixture resembles fine breadcrumbs.

3)Put the sugar, treacle, syrup and milk in a medium saucepan and heat, gently stirring until the sugar has dissolved.

Turn up the heat and bring the mixture to just below boiling point.