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Any variation on traditional horizontal cake layers makes for an impressive, professional-looking presentation. Other examples are Chocolate Triangles and Chestnut Puzzle Cake. To achieve the desired outcome with any of these pastries, it is extremely important that the sponges are thin and are cut precisely. The narrow strips used for this cake must be placed on top of the ganache while it is still sticky so they adhere and remain standing straight when the filling is added. To help preven