the cherry on the cake

the cherry on the cake

An additional benefit or positive aspect to something that is already considered positive or beneficial. Having all of you here for my birthday has really been wonderful, and this thoughtful gift is the cherry on the cake. Sarah really wanted that job, so she said the signing bonus was really just the cherry on the cake.
See also: cake, cherry, on

the cherry on the cake

a desirable feature perceived as the finishing touch to something that is already inviting or worth having.
See also: cake, cherry, on