Transcript:
Charlie Brown walks along and calls out,"Hey, Violet!"
Violet sits on the floor playing with her doll. He walks up to her and asks,"Why don't you make mud pies for me any more?"
He sits next to her as she replies,"You wouldn't like the taste of them now, Charlie Brown...our family has moved into a new house..."
She concludes,"Where we live now the earth isn't rich enough!"
The gag is recycled from the Li'l Folks strip from October 5, 1947:
Original comic:
Why does he suddenly care? It's not like he enjoyed eating them...