Preheat oven to 350°F. Line a 9×9 baking pan with nonstick foil and grease.

In mixer, combine flour, salt, and brown sugar. Mix in butter until crumbly. Press evenly into prepared baking pan. Sprinkle white chocolate chips and milk chocolate chips on top. Sprinkle chopped Oreos on top. Lightly press down. Pour sweetened condensed milk evenly all over the top. Bake for 20-23 minutes, until golden brown on top. Sprinkle extra chips on top out of the oven.

Cool completely and cut into bars. Store in refrigerator