1. Preheat the oven to 160°C (320°F). Prepare a baking dish with a sheet of absorbent paper at the bottom.
2. Split the vanilla pods in half and scrape out the seeds using the tip of a small knife. Reserve the pulp in a small container.
3. Crack the egg and place it in a bowl, add the egg yolks. Whisk them together without making them frothy. Add the sugar and mix without making it frothy, add the pulp of the 2 vanilla pods, pour in the cream, and mix. Fill the ramekins equally.
4. Place the ramekins in the prepared baking dish. Bring a saucepan of water to a boil and pour the water around the ramekins. Bake for 30 minutes. At the end of the cooking time, remove them from the water bath and let them cool for 2 hours.
5. When ready to serve, sprinkle the chilled creams with brown sugar using a sieve and remove the excess sugar. Then, use a kitchen blowtorch to caramelize the sugar or place them under the broiler of your preheated oven at 250°C (480°F) for 2 minutes.