@Australis : nope, he did not send them. But he was at their stall for a reason.
@TetraSky : Well she does not have the grounding to say no. Without another nobles backing she can not refuse the requests of one.
@XL : Keep in mind he did insult her work before she went to use the stun rod.
@DrDuckling : He makes potato chips in a later arc, and a few other recipes as he finds the ingredients or substitutes. This series is more about tech then food though. The problem with snacks is that in most settings Sugar is expensive and you need allot for most snack foods. Also
Kuma Kuma Kuma Bear has allot of snack food in the webnovel, manga has not had any yet, but is close to the first one she makes IIRC.