Break the dark chocolate into small pieces and heat in the microwave for 2 1/2 minutes. Take the chocolate out and stir to melt any remaining solids. Stir in half of the pistachios, pomegranate seeds and pretzels and cover in chocolate.

Pour the mixture on to some grease proof paper and spread out with a back of a spoon or spatula. Sprinkle the remainder of the ingredients on top of the chocolate. Leave the chocolate to set, which should take roughly 30 minutes. When completely set, break randomly into shards. Enjoy!