Cost a recipe step by step
- List every ingredient and the quantity used in the recipe.
- Convert purchase units to recipe units (e.g. RM/kg to RM/g).
- Apply yield to account for trim and cooking loss.
- Sum the adjusted ingredient costs to get the plate cost.
- Divide plate cost by menu price for the item food cost %.
Why yield matters
If you buy whole fish at RM40/kg but only 60% is usable after filleting, your true cost per usable kg is RM40 ÷ 0.6 = RM66.67. Ignoring yield understates plate cost and quietly inflates food cost.
Yield-adjusted cost = Purchase cost ÷ Yield %
Keep costed recipes in one place and re-cost when supplier prices move — otherwise your theoretical food cost drifts from reality.