Mix the water, the sugar, the glucose in a saucepan to obtain a clear coloured caramel.
Mix the fleur de sel and the coriander together.
Away from the heat, pour the mix of fleur de sel and coriander into the caramel and then the sticks of almonds and the pistachios. Mix thoroughly.
Add the butter cut into pieces and mix again.
Spread the nougatine on a baking plate (40 x 60cm) covered with a sheet of baking paper and leave to cool.
To easily spread the nougatine at a thickness of à ½ cm maximum, put in the oven heated at 140°C for a short moment and flatten it with a pastry roll.
When the nougatine is cold, cut it into pieces of approximately 4 to 6cm, breaking it with your hands.