Chocolate Cheesecake   Chocolate cheesecake is time consuming yet decadent dessert. It has a smooth and creamy, literally melt in mouth texture. It has three layers- an easy to make chocolate crust,creamy center and smooth ganache topping. If you like a more delicate taste,use white chocolate instead of semi sweet or bitter chocolate.    Ingredients  For the crust  Chocolate graham crackers crumbs- 1 1/3 cup  melted butter- 3 tbs   For the filling  Full fat cream cheese- 2 packages(16 oz)  Sugar- 3/4 cup  Semi sweet/ bitter sweet chocolate-  5 oz  Unsweetened Cocoa -2 tbs  Vanilla extract- 1 tsp  Eggs- 2  Sour cream- 3/4 cup   Ganache topping  Semi sweet chocolate- 3 oz  Heavy cream- 1/4 cup             To make the crust process chocolate graham crackers in a food processor into fine crumbs (or put them in plastic bag and crush them very fine with a rolling pin). Add 3 tbs of melted butter and mix well till the mixture resembles wet sand.  Grease 8 inch spring form pan wi...