Pour two bags white chocolate chips into a deep microwave safe bowl. Add butter to the top of the chips. Pour in sweetened condensed milk and mix well.

On 50 percent power or defrost time microwave for 3 minutes then stir. Then another 2 minutes then stir. Repeat at 1 minute intervals from here on out until all is melted.

Chop up two rows of Oreo cookies. Mix vanilla and salt into the melted chocolate. Fold in the cookies.

Line a 9x9 baker with parchment paper and pour in the mixture. Spread out evenly.

Chop four more cookies and top over the fudge pressing down. Place in the fridge for 24 hours.

Remove and cut fudge into pieces the size you would prefer. Store in fridge in a airtight container for up to three weeks.