03/03/2008 AT 01:00 PM EST
Talk about a "big give": Drew Barrymore
announced on Monday's Oprah Winfrey Show
that she is donating $1 million to the World Food Programme to help feed children in Africa.
"I have seen with my own eyes what a difference a simple cup of nutritious porridge can make in a child's life," the actress said. "It helps them learn, stay healthy and sets them on track for a bright future."
Barrymore, 33, has worked with the charity since 2005 and became an Ambassador Against Hunger last year. She's taken two trips to Kenya to see the organization's work first hand.
"We have a dream ... to feed another 10 million hungry school children in Africa by Thanksgiving Day," said WFP Executive Director Josette Sheeran, who also appeared on Oprah
For more information, visit wfp.org