Seville oranges are sold in the last three weeks of January. Bitter (Seville) oranges are classically used in cooking, not just in marmalade but also in dishes such as Duck à l’orange.

These beautiful fruits have an intoxicating scent – and make excellent footballs. By Simon Armitage It’s orange-picking time in Seville. Men in work gloves and hi-viz bibs lean their ladders against ...