By Gretchen McKay, Pittsburgh Post-Gazette

My 18-month-old grandson doesn’t have the biggest vocabulary, but like most toddlers, he makes what he wants known pretty clearly.

That’s especially true when it comes to his favorite foods, which these days is pretty much anything he can stuff into his mouth unassisted.

His most practiced phrase is “Eat, eat!” followed by a gesture he learned at daycare — tapping his thumbs and fingers together in a flat “O” to make the American Sign Language sign for “more.”

All kids love cookies, crackers and string cheese, of course. Their parents do, too. But perhaps none is more beloved among the rugrat set than goldfish crackers, which Pepperidge Farm launched in the U.S. in 1962 — surprisingly — as a bar snack for adults.

The fish-shaped crackers were

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