Auntie Betty's Double Chocolate Cheesecake

• 4 eggs
• 1 1/2 hershey bar (frozen)
• 1/2 pkg
• 475 ml sour cream
• 350 gr semisweet chocolate chips
• 200 gr sugar
• 120 ml chocolate cream wafers
• 230 ml pkgs cream cheese
• 70 gr macadamia nuts
• 55 gr butter