ST. LOUIS — Ralcorp Holdings, Inc. has completed its acquisition of Petri Baking Products, Inc., a producer of private label wire-cut cookies.

“We are pleased to complete this transaction, which complements Ralcorp’s cookie product offerings,” said Kevin J. Hunt, chief executive officer and president. “We welcome the Petri Baking Products management team and employees to the Ralcorp family.”

Petri Baking Products, based in Silver Creek, N.Y., will operate as part of Ralcorp’s Snacks, Sauces & Spreads division. Terms of the transaction were not disclosed.