Line an 8X8 dish with foil (I line mine horizontally and vertically so that once the fudge is chilled - I can use the foil to lift the fudge easily out of the dish for cutting. Spray the foil with cooking spray.

In a large microwave safe dish (I use my 8 C glass measuring bowl) combine chocolate chips, sweetened condensed milk, butter, vanilla bean paste and salt. Microwave on half power for about 2 to 5 minutes total, until melted. Cook about 1 1/2 minutes, then stir - another 1 1/2 minutes - stir. Repeat until melted. This is not a creamy melted concoction, it's somewhat thick.

Stir in Walnuts

Pour this and smooth into the foil lined 8X8 baking dish; place in the refrigerator until chilled.

Remove from dish, cut into bite size squares and enjoy yourself or give as a gift!