Unfortunately, a cracked cheesecake cannot be fixed as such, but the cracks can be disguised. In this instance, there are a few options: 1. Make a little more blackcurrant compote and use it to fill the cracks. 2. Pipe rosettes of whipped cream around the edge of the cheesecake and spoon a little extra blackcurrant compote into the centre - just enough to hide the damage. 3. Simply embrace the rustic look and serve it just as it is without shame. Baked cheesecakes sometimes do crack despite your best efforts.