In contrast to what occurs in the crumb, the cake crust temperature exceeds 150 C during baking, and thus Maillard and sugar caramelization reactions take place and are responsible for the final crust colour. In this case, despite the fact that lentil flours have different amino acid and sugar contents from wheat flour, no significant differences in colour were observed. There was only a tendency to a fall in the b* value, and thus in hue value, in layer cakes after the addition of lentil flours. No differences were observed according to the type of lentil flour.