Easy Fudge

Line 13 x 9 x 2-inch pan with foil, extending foil over edges of pan; set aside.

In heavy saucepan over low heat, melt chips with sweetened condensed milk and salt.

Remove from heat; stir in walnuts and vanilla.

Spread evenly into prepared pan. Refrigerate 2 hours or until firm.

Use foil to lift fudge out of pan; place on cutting board.

Peel off foil; cut into pieces. Store tightly covered in cool, dry place.