Alright time to make his own fortune cookie! This was kind of cool! But first he needed to reduce his fortune papers. They needed to be smaller so they could fit into the cookie. Seemed logical. He got his wand out and said,
"Reducio!" and then the papers shrunk.
"Finite!" he said so they wouldn't be too small. They seemed to be the right size and he could read them clearly. Now onto following the recipe....
Aahh he needed to use his wand to reheat the oven? Well couldn't he just push the buttons instead? Ah wait they were in the wizarding world. He got his wand out and said,
"Incendio!" and then he felt the heat from the oven and it seemed like the right temperature. It was warm to him.