1
: In heavy frypan over medium heat, cook sugar, stirring constantly until melted and caramel-coloured. Pour into 4-cup (1 L) round shallow baking dish, immediately tilting to coat bottom of dish completely.
2
: In medium bowl, beat eggs; stir in water, sweetened condensed milk, vanilla and salt. Pour through a fine sieve into prepared dish.
3
: Set dish in larger pan (eg. broiler pan). Fill pan with hot water to a depth of 1 inch (2.5 cm). Bake in preheated 300ºF (150ºC) oven for 40 to 45 minutes or until knife inserted near centre comes out clean.
4
: Remove dish from water bath. Cool. Chill. To serve, loosen side of custard with knife; invert onto serving dish with rim; cut into wedges. Cover leftovers; refrigerate.