Heat a skillet over medium heat. Add the walnuts to the warm pan and cook, stirring frequently, until they turn lightly golden and release a fragrant aroma, about 2 to 4 minutes.
Notes
Walnut has a high-fat content that can make them burn quickly, so be sure to keep a close eye on them and stir often/constantly shake the pan.
To store: Allow the walnuts to cool to room temperature. Then, transfer the walnut pieces in an airtight container or reusable silicone bag. They’ll keep for up to a week.