The present invention relates to a method of producing an animal food product with a core and a shell at least partially covering the core, in which the core starting material includes meat andor meat-like components, water, oil andor fat, vitamins, minerals, salts, antioxidising agents, dyes andor preservatives, vegetable fibres, and other ingredients. An image quality aim is obtained for rendered image appearance according to one or more stored viewer preferences. Preferably, the energy bar is either a grain based energy bar or a chewy energy bar.