"Pineapple" is the old name for pinecone in English. "Apple" is the catch all word for fruit (which pinecones are technically not but that's how catch all it was). That's why pinecones are called pineapple. What we call now pineapple was called that way because it looks like a pinecone
Also, that's part of the reason everyone pictures the fruit of Eden as an apple. In the original script it doesn't even say apple anywhere, just fruit.
I'm pretty sure there is some northern country that has candied pine cones sold in jars. Like small ones. I have a bottle of alpine pine liqueur (Zirbenlikör) which tastes pretty nice. So this is a maybe, I guess? Well, not the big ones, they might be too crunchy.