Chocolate Orange Cheesecake

• 5 eggs
• 250 gr bittersweet chocolate
• 450 ml cream cheese
• 160 gr graham cracker crumbs
• 150 gr sugar
• 120 ml sour cream
• 34 gr butter (unsalted)
• 5 gr pernigotti cocoa
• 3 gr cinnamon (ground)
• 2 ml orange oil