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You can easily find a jar of top quality creamed salmon and white truffle sauce

Tips
Truffles should be stored in the refrigerator wrapped in a paper towel or cotton cloth in order to allow it to retain its natural moisture. Note that black truffles keep longer, while white truffles will keep their essential characteristics for not more than a week.
Trivia
It appears that the name "truffle" comes from the Latin "terra tufule tubera", as truffles resemble tufo, a porous stone which is common in Italy.