Don't think the rising price of butter has anything to do with Brexit. That is just a red herring. It's the law of supply and demand and human greed that has caused this. Dairy farmers being paid less than it costs them to produce milk by the big supermarkets driving the prices down and down and forcing them out of business. The number of dairy farmers in the UK who have gone to the wall having spent the last few years trying to raise families on incomes under £10k pa is forcing prices up, plain and simple. When a commodity becomes scarce it becomes a premium product at a premium price. We, the consumer, have only ourselves to blame.