You take a pot, a plate in the pot top down, put one or two cups water inside, put vegies in, put the cap on the pot. Give full speed upto the water is cooking, then turn down so that the water is just simmering. No and then you have to look if you have enough water in the pot. If your vegies are cooked, take water for the sauce.
A better and faster way is a pressure pot. It cook faster without air (oxigen) that is better for the vitamins.
Greetings from Hamburg, Germany