Chocolate Swirl Cheesecake 2

Ingredients 

• chocolate marble cake mix 
• 16 ounce cream cheese; softened 
• 1/2 cup sugar
• 1 teaspoon vanilla 
• 2 large eggs 
• 1 cup milk chocolate chips; melted 

Grease cake pan. Prepare basic cake mix as directed on package; pour batter evenly into  pan. Bake at 350°F, 15 minutes. Combine cream cheese, sugar and vanilla, mixing at medium speed on electric mixer until well blended. Add eggs, one at a time, mixing well after each addition. Pour over brownie layer. Spoon chocolate over cream cheese mixture, cut through cheese and chocolate mixture several time to achieve a marble effect. Bake at 350°F., 35 minutes. Loosen cake from rim of pan; cool before removing rim of pan. Chill. Frost as desired.