<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (October 2014) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (October 2014) (Learn how and when to remove this template message) </Td> </Tr> <Table> Mashed potato <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Place of origin </Th> <Td> United Kingdom </Td> </Tr> <Tr> <Th> Main ingredients </Th> <Td> Potatoes, butter or vegetable oil, milk or cream </Td> </Tr> <Tr> <Th> Variations </Th> <Td> Duchess potatoes, Laonai yangyu ("Granny's potatoes"), aloo bharta </Td> </Tr> <Tr> <Th> Food energy (per serving) </Th> <Td> 214 per cup kcal </Td> </Tr> <Tr> <Td_colspan="2"> Cookbook: Mashed potato Media: Mashed potato </Td> </Tr> </Table>

Who came up with the idea for instant mashed potato