Perceptive as he was, he was completely oblivious to any flirting on her part. "Absolutely, I'll make you your first hamburger."
Stopping himself from waxing poetic about the glory and greatness of the classic hamburger, Jughead instead focused his attentions on making Ciri food. Jughead knew what he would want on a perfect chicken sandwich, and was half-tempted to just make that. The only thing stopping him was that he was unaware of whether or not she had any food allergies. Glancing over at her with a curious expression on his face, Jughead figured there was no harm in asking her an important question.
"Alright Ciri, how do you feel about bacon and cheese? If you like them, and you trust me, I'll make you the fried chicken sandwich I would make myself. And, I'll even make you french fries."
She probably didn't know what those were either, but what better time was there than now to learn about them. "And if you've never heard of french fries, they're potatoes cut into sticks and crisped up."