Marbled Double Chocolate Cheesecake Squares
["1/2 c. (1 stick) butter, softened", "1 c. sugar, divided", "1/4 tsp. salt", "1 c. all-purpose flour", "1/4 c. Hershey's cocoa", "2 pkg. (8 oz. each) cream cheese, softened", "2 eggs", "2 tsp. vanilla extract", "1/2 c. Hershey's Chocolate Shoppe topping at room temperature", "1/4 c. Hershey's semi-sweet chocolate chips, melted"]
["Heat oven to 350\u00b0.", "Line 8 or 9-inch square baking pan with foil, extending edges over sides of pan.", "In a small mixing bowl, beat butter, 1/2 cup sugar and salt until smooth.", "Stir together flour and cocoa; gradually add to butter mixture, beating until soft dough is formed.", "Press dough onto bottom of prepared pan. Beat cream cheese and remaining 1/2 cup sugar until smooth.", "Add eggs and vanilla; blend well."]
["butter", "sugar", "salt", "flour", "cocoa", "cream cheese", "eggs", "vanilla extract", "Chocolate Shoppe", "chocolate chips"]