Step 1

Melt the butter in a sauce pan, add the flour, and stir with a whisk to combine.

Step 2

Add the bone broth and thyme and bring to a simmer stirring with your whisk occasionally until it thickens.

Step 3

Season salt and pepper to taste and serve. This will refrigerate and reheat stovetop well (up to 4 days in advance), or you can freeze it for months.