Orange Buttercream Layer Cake

You can make elegant rectangular cakes very simply by cutting a sheet cake into rectangles and stacking them. Because a rectangular cake is very easy to trim around the edges, it is easy to make the cake even and professional looking.

Here, several techniques are used to flavor the cake orange. The buttercream is flavored with orange zest and orange oil and the simple syrup is infused with orange rinds that have first been blanched to eliminate bitterness. Each layer is sealed with