The arrangement, which the food manufacturer said will 'maximise cost savings', is for a two-year tenure.
Burton's Foods, which owns several biscuit brands including Jammie Dodgers, Maryland Cookies and Wagon Wheels, has tasked LFH with handling all stages of design and production.
According to Burton's Foods, it is the UK's second-biggest biscuit supplier. It also produces Cadbury's chocolate biscuits and Bertolli olive oil products under licence.
In October, the company rolled out a seasonal range of biscuits as part of a wider £2.5m marketing push.