Turn the oven temperature up to 300 degrees Fahrenheit.
Add heavy cream and vanilla to a medium saucepan and boil over medium heat, stirring often, until it begins to steam and is almost at a simmer.
Combine 5 egg yolks, 1/2 cup sugar, and a pinch of salt in a medium bowl and whisk until smooth.
While continuously whisking, add the hot cream. Take your time to prevent your eggs from being scrambled.
Put the mixture of the bowl into a fine-mesh sieve and then into a big measuring cup with a pouring spout.
Toss out anything that is left in the strainer. Fill six 4-ounce ramekins and arrange them in a 9-by-13-inch baking dish.
Boil some water and use it to fill the baking dish up to where the cups will sit.
Bake for 30-35 minutes at 300 degrees Fahrenheit, or until the centers are almost set but still have a little jiggle.
Refrigerate the crème brulee for at least 2 hours, and up to 3 days, after removing the ramekins from the water bath and cooling on a wire rack.
Before serving, sprinkle 1 1/2 to 2 teaspoons of sugar over each custard and swirl to distribute.
Move the torch around in a circular pattern to caramelize the top and achieve a deep amber color.