In medium heatproof bowl, combine chopped chocolate and salt. Stir often until melted and smooth. Remove from heat and hot water. Cool briefly, then chill, covering tightly when cold. Store in refrigerator for up to 5 days.
Milk chocolate can be stubborn about melting.
Place over low heat, and stir almost constantly until sugars are dissolved. Remove from heat. Cool briefly, then chill, covering tightly when cold. Store in refrigerator for up to 5 days. Slice this into thin slices, then place the slices on the bottom and partway up the sides of the bowl.