Bring the water, milk, salt, sugar and butter to the boil. Add the flour and dry out the paste. Gradually add the eggs using a mixer. Use a 15mm small-toothed nozzle to pipe 12 cm éclairs onto a Silpat®. Use a spray to lightly spray grape seel oil onto the éclairs. Bake in a deck oven at 180°C (356°F) (releasing valve open). If using a fan-assisted oven, freeze the choux paste then place in the oven at 260°C (500°F) and turn the oven off. Leave the choux pastry to rise (releasing valve closed) then turn the oven on to 170°C (338°F) without opening the oven.
Bring the milk and glucose to the boil, add the gelatine that has been softened in water. Pour onto the melted couverture chocolate and blend. Add the cold cream and blend again. Refrigerate to set.
Cook the sugar and water to 117°C (243°F). Add the toasted peanuts and stir until evenly coated and the sugar has re-crystallized. Add the butter and salt. Cool. Add the sparkly powder.
Cook the water, sugar and glucose syrup at 103 °C (217°F). Pour into the condensed milk. Add then the chocolate, the gelatine and the water of hydration. If needed, mix and let coloured. Reserve to cold during 24 h. Use at 28°C (82°F).
Garnish the éclairs with the creamy Dulcey chocolate through the top. Dip into the glaze then stick the peanuts on, pressing down gently to make them stick. Add the chocolate decoration.