- 3 tablespoons butter
- 3 cups white sugar
- 3 tablespoons cornstarch
- 1 pinch salt
- 1 teaspoon distilled white vinegar
- 1 cup evaporated milk
- 3 (1 ounce) squares unsweetened chocolate
- 1 teaspoon vanilla extract
- Butter an 8 or 9 inch square pan. Set aside.
- In a large bowl, combine sugar, cornstarch, and salt; mix well. In a heavy saucepan, cook butter or margarine until golden brown; remove from heat. Add sugar mixture; mix well. Stir in vinegar and milk; return to heat. Bring to a boil, stirring frequently. Cover and boil 5 minutes, stirring occasionally.
- Stir in chocolate. Insert a candy thermometer and cook, uncovered to soft ball stage, 238 degrees F ( 114 degrees C). Remove from heat; add vanilla and do not stir. Let it sit until pan is lukewarm and easy to hold.
- With a sturdy wooden spoon, beat the fudge until it loses is shine.
- With buttered hands, quickly press mixture into prepared pan. Let cool slightly before cutting. Keep fudge covered tightly with plastic wrap.