A limited edition of the hard cover printing contained the recipes, with an introduction from Nero Wolfe.
The American Magazine printing had available (optionally or as part of the purchase?) a recipe box with a book-like format.
All recipes in both editions are reported to have the identical recipes reprinted in
The Nero Wolfe Cookbook.
Here is a wonderfu,l first hand account of the preparation and pitfalls of preparing
saucisse minuit:
http://inspiredbywolfe.wordpress.com/2011/06/15/saucisse-minuit/