End the summer season and kick off Autumn with this soft cider and cinnamon cake. Sweet cider keeps the cake moist and fluffy while giving it that sour apple flavor. Cinnamon is an aromatic and intensifies the cider taste. Castor sugar, finer than granulated sugar, quickly mixes into the batter and sweetens the sour dough. The cake dough should be thick and lightly brown in color before going into a heated oven. Remove and cool. Due to its thickness, thin slices are recommended for serving.