Ferrero said the deal would expand its presence in North America and help the company move beyond its candy and snack offerings.

The Italian candy company Ferrero plans to buy the American cereal maker Kellogg for $3.1 billion, the companies announced Thursday. The deal would unite the makers of household brands including Nutella and Frosted Flakes. American cereal giant Kellogg and Italian candy giant Ferrero have struck a sweet deal worth $3.1 billion.

Ferrero, the maker of Nutella, announces a $3.1 billion deal to acquire century-old cereal company WK Kellogg, expanding its North American breakfast and snack portfolio.