Add the red wine, shallot, garlic, rosemary and thyme sprigs, and peppercorns to a medium saucepan.
Bring to a boil and reduce until you have 1 cup. Strain and return to the pan. Whisk in the remaining ingredients, except the butter. Bring to a low simmer for 5 minutes. Whisk in the butter one piece at a time until completely incorporated before whisking in the next piece. Remove from heat. Best if served warm.
The sauce will keep for a couple weeks in an airtight container. Gently reheat before serving.
Recipe by Grilling Outdoor Recipes powered by Bull Outdoor Products at https://blog.bullbbq.com/red-wine-steak-sauce-new-york-strip/