average cost of a wedding cake
1 The average cost of a wedding cake is $543, according to The Bridal Association of America. 2  For wedding cakes, most bakeries and pastry chefs charge by the slice. 3  A low-end option would be a smaller tiered cake in chocolate or vanilla paired with a sheet cake for cutting for around $1.50 a slice. Decorations make a big difference in the per-slice cost. 2  Fresh flowers are one of the easiest and least expensive ways to decorate a cake. 3  Fondant, which can cover a cake in a smooth, satiny shell, is one of the most expensive; it can add $1 or more per slice. 4  Elaborate fondant decorations increase the price even more.