In applying Preventive Controls in the operation that made this product, having a properly implemented Allergen Preventive Control at the point of labeling would help prevent this. This would include having a step to check the labels for a match to the formulation and then having verification (another person checking, a record review of the labeling record, direct observation of the label check, etc).
FDA Recall Notice
https://www.fda.gov/Safety/Recalls/ucm549680.htm
Lifestyle Evolution Voluntarily Recalls One Shift of NuGo Slim Crunchy Peanut Butter
For Immediate Release
March 30, 2017
Lifestyle Evolution Voluntarily Recalls One Shift of NuGo Slim Crunchy Peanut Butter
For Immediate Release
March 30, 2017