This is my Sister's recipe Ingredients: 1/2 cup plus 2 tablespoons evaporated milk. 2 cups packed light brown sugar. 1 1/2 sticks (12 tablespoons) unsalted butter, cut into tablespoons. 1/4 teaspoon salt. 1/2 teaspoon vanilla extract. 1 3/4 cups icing sugar. preparation Combine milk, brown sugar, butter, and salt in a 3-quart heavy saucepan and bring just to a boil over moderate heat, stirring until sugar is dissolved. Reduce heat to low and simmer, stirring frequently, until mixture registers 238°F on thermometer and a teaspoon of mixture dropped into a small bowl of cold water holds a soft ball when pressed between your fingers (this will take about 30 minutes). Transfer to a heatproof bowl. Beat in vanilla with an electric mixer at medium speed, then add the icing sugar a little at a time, beating until fudge is thick and smooth, about 5 minutes. Spread evenly in an ungreased 8-inch square baking pan. Refrigerate, uncovered, until firm enough to cut, about 30 minutes. Cut fudg...