2/3 Evaporated Milk
2 Brown Sugar
3/4 Unsalted Butter
1 3/4 Powdered Sugar
In a heavy medium sized pot, bring first 4 ingredients to a boil over medium-high heat, stirring constantly.
Reduce heat to low and stir frequently until candy thermometer reads 240°F (soft ball stage (this will take about 20-30 minutes.
Pour into a metal bowl as a plastic one will melt and add vanilla.
Beat with electric mixer at medium speed.
Add powdered sugar slowly and continue beating until fudge is thick and smooth (about 3-4 minutes.
Add walnuts and stir with spoon.,
Spread in an ungreased 8 square pan and refrigerate-uncovered for about 30 minutes.
Cut into small squares and eat.