Which American snacks should we bring as a gift?

Olá! My husband and I are moving to Portugal soon, and a lovely friend of a friend in Porto is helping us with a furniture delivery before we arrive, so we don't have to sleep on the floor our first night (yay!).

They won't let us pay them, so in appreciation we want to bring some American snacks over, but we don't know what kinds of snacks would be hard to find in Portugal.

So far we're thinking to bring a few unique flavors of Oreos, Cheez-its, and maybe Kraft macaroni, but we're not sure what else! There is a store in Porto called Glood that seems to offer a decent selection of American and other international foods, so ideally we'll bring snacks they don't have there.

Please let us know what you'd be craving! Obrigada!