Step 1

Preheat oven to 350 degrees. Line a rimmed baking sheet with parchment paper or foil for easy cleanup.

Step 2

Toss walnuts in oil and salt if desired. Arrange in a single layer on prepared baking sheet. Toast until browned and fragrant, stirring occasionally, about 7 to 10 minutes.

Step 3

Remove from oven and chop or use as desired. Or, store in an airtight container for up to 1 week.

Step 4

Toss walnuts in oil and salt if desired.  In a medium skillet over medium heat, heat walnuts until browned and fragrant, stirring occasionally, about 2 to 5 minutes.

Step 5

Remove from skillet and chop or use as desired. Or, store in an airtight container for up to 1 week.