Whisk 108 g of water to bloom your gelatin and keep it in the fridge for 20 minutes. In a small saucepan, cook water (1) with sugar (1) until it reaches 230°F (110°C)to make a syrup, then remove it from heat. In another saucepan, bring to a boil whipping cream, water (2), and sugar (2), and add syrup to it. Bring everything to a boil before adding gelatin. Pour onto dark chocolate chopped in small pieces. Mix with an immersion blender. Cover with saran wrap. You can either use it the same day or another day (leave in the fridge in that case). Either way, it should be at 75°F (24°C) when using it to glaze your frozen entremets.