Truffel what ...? Truffle de-riv-a-tives!

We came up with a somewhat difficult word: 'truffle derivatives', products based on the beloved truffle. Not only great on a Scrabble board, but also in the pantry. Think of truffle oil, preserved truffle, truffle salsa in combination with some mushrooms, thinly sliced summer truffle in a jar, truffle jus, truffle butter ... So, if you can make it up, we've got it! ... or make it!