**Truffle oil is probably your best inexpensive starting point**, especially for a burger. It won’t reproduce all the complexity of fresh shavings: most commercial versions use added aroma compounds to imitate part of the truffle scent. But you may still enjoy the result. [American Chemical Society](https://www.acs.org/molecule-of-the-week/archive/d/2-4-dithiapentane.html)

Try mixing **a drop or two into a tablespoon of mayonnaise**, then taste before adding more. Use it on the finished burger; it can become overpowering quickly.

Other options:

- **Truffle salt:** sprinkle a little on the cooked burger or fries.
- **Mushroom-and-truffle paste**, often called *tartufata*: a convenient burger topping. Check the ingredients for actual truffle content and added flavoring.
- **Sautéed mushrooms or a little porcini powder:** provide earthy, savory depth, though they won’t duplicate truffles’ distinctive aroma.

It’s also worth asking the restaurant whether the burger included truffle oil or truffle mayo alongside the shavings—that could help you recreate the flavor you loved.