Such a flavorful cake, full of oranges and almonds. Serve each 8-inch cake individually as a gluten-free, dairy free cake with just a dusting of powdered sugar on top. Or, dress it up as a layer cake with frosting and sugared almonds. Either way is delicious. I used one of my favorite frostings, Flour Buttercream. Please Note: this frosting recipe is not gluten-free or dairy-free. To keep the entire cake gluten free use Swiss Meringue Orange Buttercream instead. I recommend making the sugared almonds one or several days beforehand and putting in a covered container until ready to use.