Orange-Caramel Sauce

Combine sugar and salt with water in a heavy saucepan. Bring to a boil over medium-high heat, stirring to dissolve the sugar. Cook, without stirring, until it turns a deep amber color, 8 to 10 minutes. Do not burn. Remove from the heat and carefully swirl in the remaining 1 tablespoon water to stop the cooking; be careful, it will spatter.

Cool 2 minutes, then gradually stir in evaporated milk. Return pan to very low heat and stir to dissolve the caramel; the mixture must not boil. Remove from the heat and stir in orange-juice concentrate.