In an MW safe bowl, take the Hazelnut and MW for 30 secs twice. let it rest.
In the same MW safe bowl, take the chopped dark chocolate compound and MW for a minute.
then add butter and again MW for another minute.
Remove and quickly blend together, add the roasted hazelnut and mix in well.
Using spoons, drop as clusters on a lined tray. Chill for 30 minutes