I suspect an Osa-yuku was involved.

Alchemy in a nutshell.

The funny thing is, the phrasing in the original is ambiguous in a way it even implies she just put the okayu away and pulled a burger out of an oven.

Steamed Hams with Imaizumi Kagerou and Wakasagihime.

Localization in a nutshell.

“Deliciously devilish, Wakasagihime”