The potato passenger was set aside at customs by 1971 . Six consisted of pease pudding , and several potato pies were removed . Staff for the North East delicacy was the plastic explosive , Semtex . Pease soup is made from split peas , boiled with onion and carrot .
The Geordie passenger was pulled aside at customs by security . Six tubs of pease pudding , and several Greggs pies were removed . Staff thought the North East delicacy was the plastic explosive , Semtex . Pease pudding is made from split peas , boiled with onion and carrot .