Using the leftover fond in the pan, place the pan over medium heat and drain off any excess fat. Dump in
shallots
and saute in the reserved chicken fat until translucent, before adding
garlic
and continuing to saute for
30 seconds
. Once fragrant, deglaze with
dry white wine
to lift up all the fond, and add
chicken stock
. Scrape all the bits off the bottom, then let it simmer for
5-7 minutes
. After 5–7 minutes, add a few healthy squeezes of
lemon
, then raise the heat to medium-high and reduce aggressively until it's thick enough that a spoon or whisk runs across the pot, leaving a trail. Kill the heat and let the pot cool down for
30 seconds
before adding
unsalted butter
. Whisk together with a few pinches of
kosher salt
,
black pepper
, and a handful of
parsley
. If the sauce breaks and becomes oily or greasy, just add a splash of water and it will come back together. Keep whisking together until the sauce is thick, glossy, and ready to serve with the chicken.