Place the frozen strawberries and icing sugar in a tall mixing bowl or shaker and let thaw for 10-20 minutes
Pour in the cream and blend slowly until creamy with a hand blender or in a mixer. If the strawberries are still too hard to puree, let them thaw for another 2-3 minutes. Cover the strawberry ice cream and freeze it for about 10 minutes
Meanwhile, chop some pistachios. For the chocolate topping, break the chocolate into pieces and melt in a hot water bath. Let it cool down for about 5 minutes
Cut 4 large balls out of the strawberry ice cream with an ice cream scoop and serve. Immediately pour some liquid chocolate over each ball and sprinkle with pistachios. Allow the chocolate coating to set, then serve