The glass should be clean and have a dam around it.
Cleaning the glass is important. If there is dust left from the sandblasting/grinding stage, the glue will not stick to the glass.
Place the glass on a level surface. The glass should be room temperature.
Pour the glue onto the glass in an even layer between 1mm to 3mm thick. If the glass is level the glue will flow to a uniform thickness on its own. You can tilt the glass from side to side to help the glue flow.
CAUTION: If your glue is too hot, it may shock the glass causing it to break, allowing the glue to run all over the place. Another reason to avoid heating the glue to a high temperature.