Genesis 25:30

25:30 So Esau said to Jacob, “Feed me some of the red stuff – yes, this red stuff – because I’m starving!” (That is why he was also called Edom.)

Genesis 25:34

25:34 Then Jacob gave Esau some bread and lentil stew; Esau ate and drank, then got up and went out. So Esau despised his birthright.