@Whothis for the time being, I'm thinking it's potatoes (but man, I think it's exactly what you don't wish him to buy)
BL Recommendations
Spoiler!
https://docs.google.com/spreadsheets/d/1mZ1odzyGGFo534EQwherPU0qyzEMAo1MPHTL8k4AFew/edit?usp=drivesdk