Pre-heat the sous vide water bath: Add water to the sous vide container or a large pot, set the Sous Vide Precision Cooker to (140°F/60°C) for medium-rare doneness. If you’d like to cook it more or less, see the temperature chart in the post above. (It's best to place the container on a cutting board or pad to prevent it from burning the surface of your counter.)
Season the pork chops: Rub the pork chops with 1 tablespoon oil on all sides.
Season both sides with salt and pepper.
Sous vide the pork chops: Add the seasoned pork to a zip-loc bag in one single layer. (You can also use vacuum seal bags if you have a vacuum sealer.)
Seal all but one corner of the bag, and slowly place it into the water bath. Make sure everything below the zip-line is covered by water. Then seal the rest of the bag. (Use a kitchen tong to help to push down the bag if the water is too hot.)
Leave the bag in the water bath and make sure it is fully submerged.
Cook for 1 hour for 1-inch pork chops.
Make the sauce or seasoning: While the pork chops are cooking in the sous vide water bath. You can mix the sauce or seasoning ingredients in a small bowl. If you choose to use one of the sauces, cook it in a skillet over medium-low heat until thickens. (Note that it will become thicker after cooling down.)
Sear the pork chops: When the timer goes off, remove the bag from the water bath and transfer it to the fridge or an ice bath. Let them chill for about 10 minutes.
Remove the pork chops from the bag and wipe off the moisture with paper towels. (It's very important to dry the surface completely, otherwise, it will interfere with the searing.)
Place the cast-iron skillet on medium-high heat. Add the remaining olive oil.
If you’re cooking the pork chops with one of the sauces, add the pork chops and sear about 1-2 minutes for the first side. Flip the pork chops, and add the sauce. Cook for another 1-2 minutes, and toss the pork chops with the sauce. If you’re cooking the pork chops with the Keto seasoning, sprinkle the seasoning on the pork chops and sear in the skillet for about 1-2 minutes each side.
Let the pork chops rest for about 5 minutes and serve.