This is not for the faint-hearted. Unashamed indulgence, wallowingly so, is what this recipe is all about: think Reese's Peanut Butter cup in cheesecake form. For that reason, I don't bake this in a water-bath as I do the Banoffee cheesecake. The water-bath is excellent if you want a silky texture, but for me, the peanut butter constituent demands a certain amount of pleasurable, palate-cleaving clagginess. And baked like this, too, the top gets a slight crust when it's cooked, making it all the easier to spread the chocolate topping.
The ingredients should be at room temperature before you start.
Recipe posted by Nigella