Which method is used for recipe adjustment?

Recipe Adjustment: Recipe adjustment refers to the process of modifying ingredient quantities in a recipe to scale it up or down according to the desired yield or portion size.

Method Used: The BARS method is commonly used for recipe adjustment.

BARS: BARS stands for "Batch, Amount, Ratio, Scale." It is a systematic approach to recipe adjustment where you adjust the ingredients based on batch size, amounts required, ratios of ingredients, and scaling factors.

Option A: Mark up - Mark up refers to adding a percentage of cost to the price of a product to determine its selling price, not recipe adjustment.

Option B: Percentage - While percentages can be used in recipe adjustment, it is not a specific method like BARS.

Option C: Prime - "Prime" is not a recognized method for recipe adjustment in the context of food science and food service management.

Therefore, the method used for recipe adjustment is BARS.