Cover a pan with plastic wrap or provide a plastic box. Melt the sugar with the water on medium heat until it turns smooth into syrup.
Now add the chocolate and stir in until melted. Let it cool completely (very important!). Separate the eggs. Beat the egg whites until stiff.
Add the egg yorks to the chocolate mixture. In an extra bowl beat the heavy cream until smooth and stiff. Next step, combine the egg whites and heavy cream until it's a smooth mixture. Crumble the cookies in small chunks and stir them into the mixture.
Pour the mixture into the pan or plastic box. Freeze overnight or for at least 6 hours.