To roast the cashews, pour onto a large baking sheet lined with parchment. Roast the cashews for 10 to 15 minutes, stirring occasionally to ensure they do not burn. The cashews on the outside will likely start to color first, so be sure to carefully stir the nuts so that they cook and color evenly.
Once done, carefully slide the parchment from the baking tray and add the lime zest, if using. As soon as the nuts are just cool enough to handle, taste for seasoning, adding a touch of salt, if needed.
Serve the cashews on their own as bar nuts, or use them in salads, such as this
Asian Kale & Coconut Salad.
The cashews will keep for several days, if stored in an airtight container.