Preheat your oven to 150ºC/300ºF .

Combine 1 cup cream, sugar, salt and vanilla essence in saucepan and bring mixture to boil over medium heat until sugar dissolves. (I like to use a double boiler pan so that the milk doesnt burn) .

Stir in remaining 1 cup cream .

Whisk yolks in large bowl until combined.

Whisk half the cream mixture into the yolks and then add remaining cream and whisk until evenly coloured and thoroughly combined.

Place a kitchen towel in the bottom of large baking dish or roasting pan and arrange six ramekins on towel.

Boil the kettle so that you have sufficient boiling water to pour into roasting pan.

Pour the egg mixture into the ramekins dividing evenly.

Carefully place the baking tray in the oven and pour in the hot water, making sure that the water reaches up 2/3 of the height of the ramekins.

Bake until the centre of the custards are just lightly set 30-35mins. They should be wobbly and not solid.

Transfer ramekins to wire rack; cool to room temperature, about 2 hours.

Cover tightly with plastic wrap, and refrigerate until cold, at least 4 hours or up to 4 days.

Uncover ramekins and if condensation has collected on custards, using a paper towel soak up the moisture.

Sprinkle each with sugar to cover the surface, and caramelise with a kitchen blow torch or place until a hot grill If you are using the grill method, make sure you are constantly watching them as you don't want them to burn or for the custard to melt.

Strain through fine-mesh strainer into 2-quart measuring cup or pitcher (or clean medium bowl); discard solids in strainer. Pour or ladle mixture into ramekins, dividing it evenly among them.

Carefully place baking dish with ramekins on oven rack; pour boiling water into dish, taking care not to splash water into ramekins, until water reaches two-thirds height of ramekins. Bake until centers of custards are just barely set, 30 to 35 minutes.

Transfer ramekins to wire rack; cool to room temperature, about 2 hours. Set ramekins on rimmed baking sheet, cover tightly with plastic wrap, and refrigerate until cold, at least 4 hours or up to 4 days.

Uncover ramekins; if condensation has collected on custards, place paper towel on surface to soak up moisture. Sprinkle each with about 1 teaspoon sugar; tilt and tap ramekin for even coverage. Ignite torch and caramelize sugar.