3 (6-ounce) packages semi-sweet chocolate chips (3 cups)
1 (14-ounce) can Sweetened Condensed Milk (NOT evaporated milk)
1/2 to 1 cup chopped nuts
1 1/2 teaspoons vanilla extract
In heavy saucepan, over low heat, melt chips with Sweetened Condensed Milk and salt. Remove from heat; stir in nuts and vanilla. Spread evenly into waxed paper lined 8- or 9-inch square pan.
Chill 2 hours or until firm.
Turn fudge onto cutting board; peel off paper and cut into squares.
Store covered in refrigerator.