To prepare the court bouillon, place the cold water and wine in a pot. Slice the celery into 1/8" -inch slices. Cut the leek in half, wash and thinly slice just the white part. Dice the onion and add everything to the liquid. Cut them lemon and squeeze in the juice. Add the bay leaf, peppercorns and salt and parsley and bring to a simmer. Once the liquid comes to a simmer, turn off the heat. Cover with a lid and let steep for about 30 minutes.
Once ready to use, transfer the poaching liquid to a suitable-sized pan in which to cook your food. Bring the liquid to the proper poaching temperature (between 160º to 180º degrees Fahrenheit. Make sure the food is completely submerged and cook until it is done to your liking.
- 5 cups cold water
- 1 cup white wine
- 2 ribs celery
- 1 leek (white part only)
- 1 small onion
- 1 lemon
- 1 bay leaf
- 1 tsp whole peppercorns (white or black)
- 2 tsp kosher salt (or to taste)
- 1 sprig fresh parsley