Preheat 325°F; crush cookies, mix with butter, sugar, salt; press into pan and bake 10 minutes.
Beat cream cheese smooth; mix in sugar, sour cream, vanilla.
Add eggs one at a time; mix in chocolate, cocoa, cream; pour into crust.
Bake in water bath 60–70 minutes; cool in oven 1 hour; chill 6 hours.
Cook evaporated milk, sugar, yolks, butter 10 minutes; stir in vanilla, coconut, pecans; cool.
Remove cheesecake; spread topping; add drizzle or whipped cream.