Place wheat berries in a large pot with flame on high, shaking pot from side to side occasionally in oder to make sure the bees toast evenly. As they begin to lightly brown, pour in vegetable stock or water to cover 1-2 inches over the berries and cover with a lid. Once they come to a boil, reduce heat to low and leave to simmer. Cook for 50 minutes to 1 hour, until berries are tender yet have a gentle toasty crunch.