Preheat the oven to 140C/275F/Gas 1 and butter a 30cm/12in x 20cm/8in cake tin. For the parkin, put the soft brown sugar, butter, syrup and treacle into a small saucepan and melt over a gentle heat.

After baking in a square cake pan or a loaf pan, the syrup-rich cake is carefully ... sticky texture. Like parkin, moggy cake ...