Step 1

Preheat the oven to 400 degrees F. Put the turkey pieces on a rimmed baking sheet, and sprinkle lightly with salt and pepper. Roast until browned and cooked through, about 30 minutes.

Step 2

Transfer the roasted turkey pieces to a medium saucepan; scrape up any brown bits from the baking sheet, and add them to the saucepan. Add the stock, thyme and bay leaves. Bring to a simmer, then cook for 30 minutes to enrich the stock with roasted-turkey flavor. Strain the liquid into a heat-safe bowl, and keep warm.

Step 3

Melt the butter in the saucepan over medium-high heat. Add the flour, and whisk until the mixture is smooth, toasted and a deep golden brown. Slowly pour in the warm broth, whisking continuously, and continue whisking until the mixture comes to a simmer. Continue to cook, still whisking, until the gravy is thick and coats the back of a spoon, about 5 minutes more. Season to taste with salt and pepper.

Step 4

Let the gravy cool to room temperature. Transfer it to an airtight container or resealable plastic freezer bag, label and date, and freeze for up to 2 weeks.

Step 5

To serve, reheat the frozen gravy in a saucepan or a microwave. Be sure to whisk vigorously as the gravy heats up to keep lumps from forming. Adjust the seasoning as needed.