Foolproof Chocolate Fudge

I make this fudge every Christmas. It's so easy! It's fun to try different variations too. My husband created his own variation this year based on his favorite candy bar (Cadbury Fruit and Nut). If you've never made fudge you should try it this year!

Foolproof Chocolate Fudge
Eagle Brand®
3 cups (18 oz.) semi-sweet chocolate chips
1 (14 oz.) can sweetened condensed milk
Dash salt
1/2 to 1 cup chopped nuts (optional)
1 1/2 tsps vanilla extract

1. Line 8- or 9-inch square pan with foil, extending foil over edges of pan.
2. Melt chocolate chips with sweetened condensed milk and salt in heavy saucepan over low heat. Remove from heat. Stir in nuts and vanilla. Spread evenly into prepared pan.
3. Chill 2 hours or until firm. Remove from pan by lifting edges of foil. Cut into squares.

Variation:
Gavin's Fruit and Nut Fudge
Make fudge as directed above using 1/2 cup of toasted almonds, and adding 1/2 cup raisins (packed) with the nuts.