Chocolate Cheesecake

I have two favorite things in the world. (Well, out of deserts anyways!) 1. Chocolate and 2. Cheesecake. So, the best thing possible would be to just combine the two into one great, amazing, delicious desert. So, I surfed the internet for a while trying to find one, when i finally found it on AllRecipes.com. This great dessert was posted by a dessert lover just like me, and was quoted as "chocolately goodness and a cheesecake." And believe me, this is true. The chocolate is absolutely gooey and delicious. If you add some strawberry preserves on top it makes it delicious. The next time I make it I am going to put caramel on top as well.
INGREDIENTS
1 1/2 cups chocolate cookie crumbs
2 tablespoons white sugar
1/4 cup butter, melted
1/4 cup semisweet chocolate chips
1/4 cup heavy whipping cream
3 (8 ounce) packages cream cheese, softened
1 cup white sugar
1/3 cup unsweetened cocoa powder
3 eggs
1 teaspoon vanilla extract
1 1/2 cups semisweet chocolate chips
1/4 cup heavy whipping cream
1 teaspoon vanilla extract

DIRECTIONS
Preheat oven to 350 degrees F ( 175 degrees C). Lightly grease a 9 inch springform pan.
In a small bowl, mix together 1 1/2 cups chocolate wafer crumbs, 2 tablespoons sugar, and melted butter. Press onto the bottom and 1 1/2 inch up the sides of the prepared 9 inch springform pan. Bake at 350 degrees F (175 degrees C) for 10 minutes. Allow to cool. Reduce oven temperature to 325 degrees F (165 degrees C).
To Make Filling: In a small saucepan, heat 1/4 cup whipping cream and 1/4 cup chocolate chips, stirring constantly, until chips are melted. Remove from heat.
In a large mixing bowl, beat cream cheese and 1 cup of sugar until smooth. Add cocoa and beat well. Add eggs and beat on low until just blended. Stir in 1 teaspoon vanilla and reserved chocolate mixture until blended. Pour over crust. Bake at 325 degrees F (165 degrees C) for 45 to 50 minutes or until center is almost set.
To Make Topping: In a small saucepan, heat 1/4 cup whipping cream and 1 teaspoon vanilla until just before boiling. Stir constantly and be careful not to boil over. Have 1 1/2 cups chocolate chips ready in a small bowl. Pour in the hot cream and stir with a spoon until smooth. Spread over baked cheesecake and refrigerate overnight.
Enjoy!