Chocolate Chocolate Chocolate Cheesecake , recipe .

Chocolate Graham Crust: 

• 1 1/2 cups graham cracker crumbs 
• 1/3 cup sugar
• 1/3 cup butter, melted
• 1/4 cup unsweetened cocoa powder

In medium bowl, stir together crumbs, sugar, cocoa and butter.  Mix well.  Press into bottom and halfway up side of a 9-inch springform pan. 
Cheesecake:

• Chocolate Graham Crust
• 2 packages (8 ounces each) of cream cheese, softened
• 3/4 cup plus 2 tablespoons sugar, divided
• 1/2 cup good cocoa powder
• 2 teaspoons vanilla extract, divided
• 2 eggs
• 1 cup Semi-Sweet Chocolate Chips
• 1 cup (8 ounces) sour cream

1. Prepare Graham Crust.  Heat oven to 375 degrees.
2. In large mixing bowl, with an electric mixer on medium speed, beat cream cheese, 3/4 cup sugar, cocoa and 1 teaspoon vanilla until smooth.  Add eggs, beat until blended.  Stir in chocolate chips.  Pour into prepared crust.
3. Bake 20 minutes.  Remove from oven to wire rack, cool 15 minutes.  Increase over temperature to 425 degrees.
4. In a small bowl stir together sour cream, remaining 2 tablespoons sugar and remaining 1 tablespoon vanilla, mix until smooth.  Spread over  baked filling.  Bake for 10 minutes.
5. Remove from oven to wire rack.  With a knife immediately loosen case from side of pan.  Cool completely; remove from pan.  Refrigerate several hours or overnight until completely cold.  via : www.clarecooks.wordpress.com