Death by Chocolate Cheesecake

crust:
9 ounces chocolate cookies (I used chocolate cat cookies from Trader Joe's but you could use graham crackers or teddy grahams as well)
1 tablespoon sugar
6 tablespoons butter, melted
filling:
10 ounces semisweet chocolate, chopped (I used semisweet chocolate chips)
4 8-ounce packages of cream cheese (I used Neufchatel cheese)
1 1/4 cups plus 2 tablespoons sugar
1/4 cup unsweetened cocoa powder 4 large eggs
topping:
3/4 cup whipping cream
6 ounces semisweet chocolate, chopped
1 tablespoon sugar
Preheat oven to 350. Grease a 9 or 10 inch springform pan. Crush the chocolate cookies in a food processor (or by pounding them flat in a plastic bag). Put them in a small bowl and mix with sugar and melted butter, then press the mixture into the bottom of the springform pan. Bake 5 minutes, then let cool while preparing the filling.

Melt the 10 ounces of chocolate in the microwave or in a double boiler until smooth. Cool slightly. In a large bowl or the bowl of a stand mixer, mix together cream cheese, sugar, and cocoa powder until smooth. Mix in the eggs one at a time, blending until smooth. Fold in melted chocolate and mix until blended. Pour over crust and smooth (I used an offset spatula). Bake about one hour, or until the center is set and appears dry. Remove from oven and let cool 10 minutes. Run a plastic knife or spatula around the edges of the springform pan to release the cheesecake. Cool to room temperature, then cover with plastic wrap and refrigerate overnight.

To make the topping, melt the whipping cream, 6 ounces chocolate, and sugar together in a small saucepan over low heat, until smooth. Pour over the top of the cheesecake and spread so it covers smoothly. Chill until the topping is set, about one hour.