In a microwave proof bowl, melt 70% dark chocolate, 20 seconds at a time. Stir at intervals. Do not overheat it.
Remove about 2 to 3 tablespoons of melted dark chocolate and set aside.
Add the crushed black truffle chips to the melted chocolate and mix till the chocolate has almost covered the chips.
Line a tray with parchment paper.
Drop spoons full of the mix onto the tray.
Drizzle some melted dark chocolate on the clusters.
Sprinkle some crushed caramel toffee on top.
Let it sit for 15 minutes in the refrigerator before serving.
Store in the refrigerator.