Italian confectioner Ferrero, known for brands like Nutella and Kinder, is buying the century-old U.S. cereal company WK Kellogg in a deal valued at approximately $3.1 billion.

The acquisition would add cereals such as Froot Loops and Rice Krispies, giving the Luxembourg-based company a deeper U.S. presence in everything from cookies to ice cream.

The $3.1 billion acquisition would combine Ferrero, which makes Tic Tacs and Nutella, with the producer of Frosted Flakes and Froot Loops.