While the vehicles themselves have been recovered, the nearly $200,000 in butter is still missing.
The theft is thought to have occurred about 11pm December 25th when four suspects broke into the facility after being dropped off nearby by someone driving a black SUV.
After entering the compound, two transport trucks were stolen and used to steal two trailers which were loaded with 20,000 kilograms of butter, with a combined retail value of $200,000.
The vehicles and trailers were found 2 days later in Etobicoke and Toronto.
Anyone with any information is asked to call the OPP or Crime Stoppers.