Chocolate Chip Cookie Dough Fudge

1/3 cup butter, melted
1/3 cup packed brown sugar
3/4 cup all-purpose flour
1/2 teaspoon salt, divided
1 1/3 cups mini semi-sweet chocolate chips, divided
1 (1 pound) package powdered sugar
8 ounces cream cheese, softened
1 teaspoon vanilla extract

Line 8- or 9-inch square pan with foil, leaving 1 inch overhang on sides. Lightly butter or spray foil.

Combine butter and brown sugar in small bowl. Stir in flour and 1/4 teaspoon salt. Stir in 1/3 cup chocolate chips. Form dough into ball. Place in plastic wrap; freeze until firm.

Unwrap dough; cut into 1/2-inch pieces; refrigerate till needed.

Place powdered sugar, cream cheese, vanilla extract and 1/4 teaspoon salt in large bowl. Beat with an electric mixer at low speed until combined. Scrape down bowl and beat at med. speed until smooth.

Melt remaining 1 cup chocolate chips in small saucepan over low heat, stirring constantly.

Add melted chocolate to cream cheese mixture; beat just until blended. Stir in chilled cookie dough pieces. Spread evenly into pan.

Refrigerate until firm. Remove fudge by lifting foil. Cut into squares. Store airtight in refrigerator.