Considering the rheological properties of the batter, it was observed that when the fibre percentage increased, the elastic and the viscous moduli also increased. This change was more noticeable with high fibre percentages. These results were consistent with those obtained by Springsteen et al. (1977), Zabik et al. (1977) and Shafer and Zabik (1978) who observed higher viscosity in the layer cake batters when wheat bran or cellulose was added. It was also observed that the higher the fibre size, the higher the G0 and G00 values. The highest values were obtained with W250 followed by O250, probably due to their high water holding capacity. The control showed intermediate values between batters of small-sized fibres (W50 and O50) and batters of intermediate-sized fibres (W80 and O80) when fibres were added at 12% percentage. However, when these fibres were added at 24%, fibre batters showed higher values than the control. Cellulose showed similar behaviour to small-sized fibres. The differences in the rheological behaviour could be also due to the different water holding capacity of fibres.