Set up a large pot or water bath and place your sous vide cooker into the water. Set temperature to 135 degrees F (57 degrees C) according to manufacturer's directions.
Combine shrimp and Creole seasoning in a bowl and toss to coat. Place shrimp in a single layer inside a large vacuum bag. Place lemon peel, thyme, and butter evenly on top. Seal the bag using a vacuum sealer.
Place bag into the water and set timer for 30 minutes.
Remove cooked shrimp from bag and serve. Sprinkle additional Creole seasoning on top, if desired.
