You may not know too much about the oil, but you’ll surely be acquainted with the plant. Rapeseed oil comes from the seeds of the one and only oilseed rape plant; that of the sunny sea of yellow flowers fame. It turns the UK golden every spring.
Rapeseed oil is the only oft-used culinary oil widely grown and bottled here in the UK. Other vegetable oils, like olive and sunflower, are mostly imported.