Slice the Brussels sprouts in half, add to the sous vide bag.
Add in the olive oil, kosher salt and everything seasoning.
Seal the bag with the Brussels sprouts in a single layer.
Once water bath has come to temperature, add the Brussels sprouts. Cook for 1 hour.
There is a good chance they will still float, so try clipping them to the side of your water bath container or use something heavy like a pot to keep them submerged. Do not pass the max fill line on your machine.
Carefully remove the bag with a pair of tongs. Serve immediately or brown them in a skillet or pan over high heat or place them on a baking sheet and roast them at 475 degrees until brown or you can put them under the broiler for a 1 minute or 2 carefully watching them the whole time.
Notes
Once your Brussels sprouts are done here are some optional seasonings you could add: