Pour gelatin into a bowl with water and leave to swell for 5-10 minutes.
Meanwhile, pour the cream into a saucepan, add sugar and vanilla and place on the stove.
Bring the cream to a boil, stirring constantly.
Remove the cream from the heat, add the swollen gelatin and stir until it is completely dissolved.
Pour the creamy mixture into the molds.
Refrigerate the panna cotta for 2 hours, then serve. Enjoy!