A statement from the firm released today confirmed that marketing investment for the two brands will "significantly increase" as part of a drive to develop both existing and new products.
Ian McMahon, RHM's group chief executive, said: "Manor is an important member of the RHM group. The actions we are announcing today are in line with our strategy of investing in key brands, introducing exciting new products and driving operational efficiency."
As part of that drive, the firm has revealed that it is to cut production costs by axing around 330 jobs.
The boost in marketing spend for Manor Bakeries comes as it moves ahead with reviewing the advertising account for the Mr Kipling brand. Last month it reduced the shortlist to handle the £3m account to a two-horse race between DDB London and WCRS.
The account was previously held by Saatchi & Saatchi, which pulled out shortly after Manor announced the review. Saatchis had held the account since 2000, during which time it handled the brand's return to TV advertising.
This saw Mr Kipling reinvented as the "man who made cakes so good you'd forgive him for anything", a reference to the brand's "exceedingly good cakes" campaign from the 70s.
However, a Saatchis' created ad for mince pies that broke in December blew up a storm and attracted a whopping 797 complaints.
The nativity play ad starts with a scene that appears to be in a hospital, with a woman called Mary in labour and crying out in pain. As the camera pulls back it turns out she is not in a hospital but is instead on a stage surrounded by children and being watched by a horrified audience.
A woman turns to a vicar, who is watching the performance while eating a mince pie. She asks in a concerned voice if Mr Kipling has ever directed a Nativity play before. The vicar, who is unfazed by the performance, responds: "No, but he does make exceedingly good cakes." The ad ends with a voice shouting out "It's a girl."
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