The exact origins of Rum Butter are a mystery. No-one knows who invented this Cumbrian delicacy but it first appeared in local larders in the late 18th century. Today, Cumbria’s Rum Butter is made in Grasmere. It is delicious on toast, oatcakes, crackers, scones and bread, as an accompaniment to mince pies and Christmas pudding, or warmed on ice cream. Rum Butter keeps for up to six months and is best kept in a cool pantry or larder but not a refrigerator.