Line a 12 hole muffin tray with cup cake cases
Heat the peanut butter, icing sugar and salt for 2 minutes.
Line a tray with baking parchment/greaseproof paper.
Spoon 12 discs of the mixture into small circles, about an inch and a half in diameter onto the paper.
Put the tray into the freezer for 15 minutes.
Meanwhile melt both chocolates by placing a heatproof bowl over a pan of barely simmering water making sure the bowl does not touch the water. Stir occasionally.
Once melted, remove from the heat and spoon 1tsp of chocolate into each cupcake case, pushing the chocolate to the edges. It will set very quickly but to speed up the process and make it a little easier, put it into the freezer for 10 minutes.
Remove the peanut butter and cupcake tray from the freezer.
Put one peanut butter disc into each of the cupcake cases.
Top with 2 tsp of melted chocolate over each peanut butter disc in the cupcake cases. (You may need to reheat the chocolate slightly beforehand but mine was fine).
Put the cupcake tray back into the freezer for 20 minutes.
Enjoy!