It is imperative that all equipment is kept cold, I suggest cooling equipment in the refrigerator prior to use.
Pass the proteins through a fine mincer into a cold bowl.
It would be best to mix the remainder of ingredients in with an elliptical mixer, using the paddle on low to medium setting.
Add the proteins, the fat, zests, and spices, and allow to mix through thoroughly.
Add the herbs and the truffle.
Season to taste, and refrigerate for an hour prior to use.