About 1 million ovens are subject to the recall, CNN reported. The U.S. Consumer Product Safety Commission has received 249 reports of children getting hands stuck, with 77 of them being burned.
One 5-year-old suffered the amputation of part of a finger.
In February, after a similar problem led to the recall of almost 1 million ovens, Hasbro added a safety grate.
Hasbro has sold millions of the ovens since the toy was introduced in 1963. But the one being recalled is the first model to use an electric heating element instead of a light bulb.
The recall involves Easy-Bake ovens sold since May 2006.
The model number 65805 is stamped on the back. The ovens are made of purple and pink plastic and have four top burners like a kitchen stove.
Buyers who report they have the model will receive a pre-paid shipping container to return it and a $32 voucher for other Hasbro toys.