Eclairs

Preheat oven to 180°C/350°F (160°C fan). Position one shelf in the top third of the oven and another in the lower third. Lightly spray 3 trays with canola oil and line with baking/parchment paper.

Simmer liquid - Melt butter in a medium saucepan over medium heat. When the butter is almost melted, add water.

Flour - Once the liquid starts simmering, add flour and salt, and vigorously stir with a wooden spoon (while still on the stove). The mixture will turn pasty then in about 10 seconds it will transform into a sticky ball of dough that comes away from the walls of the saucepan. Once this happens, remove from the stove and leave to cool for 10 minutes (no longer).