Costing a recipe means adding up what you paid for the amount of each ingredient you actually used — not the full price of every pack you opened.
The four steps
- List every ingredient and the quantity the recipe uses.
- Note the pack size and pack price for each one (check your receipt or the shelf label).
- Work out the cost used:
pack price × (amount used ÷ pack size). - Add the ingredient costs together for the total recipe cost.
Worked example
A 1kg bag of flour costs £1.20 and the recipe uses 500g. The flour costs £1.20 × (500 ÷ 1000) = £0.60. Repeat for each ingredient and add them up.
Don't forget the small things
Oil, spices and stock cubes add up. If you use a teaspoon of something, estimate it as a weight (around 5g) or simply enter a small direct cost.