Preheat the oven to 168C/350F/Gas 4 and grease and line a 900g loaf tin. Mix together the flour, ginger, baking powder, bicarbonate of soda and salt into a bowl. Warm the sugar, butter, treacle and golden syrup together in a pan. Beat the egg into the milk, then mix in all the ingredients in the bowl. Pour the mixture into the prepared tin and spread it out evenly. Simply bake in the oven for 1 1/4 hours. Remove from the tin and leave to stand for a few minutes before serving warm or just leave to cool.