How to Make It
Stir together strawberries, sugar, vinegar, and salt in a medium saucepan. Bring to a boil over medium, stirring often to dissolve sugar. Reduce heat to low, and simmer, stirring often, until liquid is reduced and mixture is thickened, about 30 minutes. Pour into a shallow dish, and chill, uncovered, until completely cool, about 1 hour.