Lightly whip the cream and mix in 80g of the blueberry coulis.
In a separate bowl whip the egg whites until they form soft peaks. Whisk the sugar in and carry on whisking until the mixture forms stiff peaks.
Then, fold in the cream mixture, followed by the praline pieces.
Put the mixture into a piping bag with a large nozzle, and pipe into moulds.
Place the moulds into the freezer for 5-6 hours until well frozen.
Take out of the moulds and leave to sit at room tempter for 2-3 minutes.