Marbled Double Chocolate Cheese Cake
["1/2 c. (1 stick) butter, softened", "1 c. sugar, divided 1/2 c., 1/2 c.", "1/4 tsp. salt", "1 c. all-purpose flour", "1/4 c. Hershey's cocoa", "2 (8 oz.) pkg. cream cheese, softened", "2 eggs", "2 tsp. vanilla extract", "1/2 c. Hershey's chocolate shoppe topping (room temperature)", "1/4 c. semi-sweet chocolate chips, melted"]
["Heat oven to 350\u00b0.", "In small bowl, beat butter, 1/2 cup sugar and salt until smooth.", "Stir together flour and cocoa.", "Gradually add to butter mixture, beating until a soft dough is formed. Press dough into bottom and 2-inches up sides of 8 or 9-inch spring-form pan.", "Beat cream cheese and remaining 1/2 cup of sugar until smooth.", "Add eggs and vanilla; blend well."]
["butter", "sugar", "salt", "flour", "cocoa", "cream cheese", "eggs", "vanilla extract", "chocolate shoppe topping", "semi-sweet chocolate chips"]