Method
Preheat an oven to 150° C, gas mark 2. Grease and line a 20cm square cake tin and line with baking parchment. Heat the butter, black treacle, golden syrup and sugar until melted together. Remove from the heat and allow to cool slightly. Sieve the flour, ginger, cinnamon and bicarbonate of soda into a large mixing bowl. Stir in the oatmeal. Make a well in the centre and slowly add the cooled syrup mixture, stirring gently to prevent large lumps forming. Add the beaten egg and milk. Blend until a thick batter is formed. Pour into the prepared tin and cook for 1¼ hours until firm to the touch. Allow to cool in the tin. Remove and cut into pieces.