How to calculate the cost of a dish with a standard recipe in the hotel restaurant
Without a standard recipe there is no theoretical cost, and without theoretical cost the hotel controller cannot say whether the restaurant makes or loses money on each dish. This guide walks through the four steps with an illustrative example and the cases that only show up in a hotel.
The chef at your hotel restaurant knows by heart what goes into the Veracruz-style fish. The controller knows what the month’s fish cost. What nobody knows for sure is what a plated dish costs, and without that number the menu price is a hunch, the included breakfast is an accounting mystery and room service sells at the same price even though it costs more. The standard recipe is the bridge between the kitchen and the income statement.
What a standard recipe is and why a hotel needs it more than anyone
A standard recipe is the list of ingredients in a dish with exact quantities per portion, the yield of each ingredient, its current cost and the total cost per plate. It is not the chef’s recipe, which says “a pinch of salt” and “to taste”. It is a cost document the kitchen respects and the controller can audit.
A street restaurant needs it to set prices. A hotel needs it for that and for four more things: valuing the breakfast included in the rate, costing the same dish when it goes out through room service, budgeting a banquet per person and negotiating a corporate agreement with a spending cap per night. Each of those decisions starts from cost per portion, and if it does not exist, they get decided by eye.
The standard recipe is also half of the waste formula. Actual cost for the month minus theoretical cost, which comes from recipes multiplied by sales, is what tells you how much was lost. Without recipes there is no theoretical cost, and the cost report (Reports) can only tell you what you spent, not what you should have spent.
Step one: the ingredient list with real quantities
Start with a session with the chef, a scale and the dish prepared the way it is served. Weigh each ingredient as it enters the preparation, not as it is bought: 200 grams of cleaned fillet, 120 grams of chopped tomato, 40 grams of onion. Write everything down, including oil, salt, spices and the side, because small ingredients add up.
Decide the unit of the recipe. Many hotel kitchens prefer to cost a batch, twelve portions for example, because that is how the sauce is actually prepared, and divide at the end. What matters is that the recipe describes what the kitchen really does, not an ideal nobody follows.
- Ingredient and purchase format (kilo, liter, piece, case).
- Quantity used in the recipe, in the purchase unit or convertible to it.
- Yield: what share of what was bought reaches the plate after cleaning, peeling or cooking.
- Current purchase cost per unit, taken from the latest invoice or the month’s average.
- Sub-recipes: the sauce, stock or vinaigrette used in several dishes is costed once and referenced.
Step two: yield, which is where most people get it wrong
You buy three kilos of whole fish or skin-on fillet, and less reaches the plate: it is cleaned, trimmed, loses water in cooking. If you cost at the purchased price per kilo, the dish looks cheaper than it is and the month’s food cost never matches the recipes. Yield is the percentage of what was bought that is actually served.
How to measure it
Weigh the product on receipt, clean it the way the kitchen does and weigh what remains usable. Dividing usable by received gives the yield. Do it three times with different lots and use the average, because the supplier does not always deliver the same. Then calculate the cost per usable unit: purchase price divided by yield.
In a hotel yield changes with the supplier and with the season, so it has to be reviewed whenever either changes. And it is worth recording the trim that is used in another preparation, like fish stock for the soup of the day, because that trim is not waste: it is a sub-recipe.
Step three: cost per portion, with an illustrative example
The figures below are made up to show the calculation. They are not market prices and not data from any property. The recipe is a Veracruz-style fish with rice, in a batch of twelve portions.
| Ingredient | Purchase | Yield | Usable quantity in the batch | Cost in the batch |
|---|---|---|---|---|
| Fish fillet | 3 kg at 160 per kg = 480 | 80 % | 2.4 kg (200 g per portion) | 480 |
| Tomato | 1.5 kg at 30 per kg | 100 % | 1.5 kg | 45 |
| Onion | 0.5 kg at 20 per kg | 100 % | 0.5 kg | 10 |
| Olives and capers | 0.15 kg at 200 per kg | 100 % | 0.15 kg | 30 |
| Oil, garlic and spices | Estimated per batch | Not applicable | Not applicable | 10 |
| Rice (side) | 1 kg at 25 per kg | 100 % | 1 kg | 25 |
| Batch total | Twelve portions | 600 |
The fish deserves an explanation. Three kilos are bought for 480, but the 80 % yield leaves 2.4 usable kilos, so the cost per usable kilo is 480 ÷ 2.4 = 200. With 200-gram portions, each fish portion costs 40, and twelve portions come to 480, which is exactly what was paid for the three kilos. Had you costed at 160 per kilo with no yield, each portion would appear to cost 32, and the 8-per-plate error would repeat on every plate sold all year.
Cost per portion is the batch total divided by the portions: 600 ÷ 12 = 50. That is the number the kitchen must respect and the controller will multiply by the month’s sales to get theoretical cost.
Step four: from cost to menu price
The price is decided with the food cost percentage the hotel wants for that dish, which is not the same for all of them: a starter can carry a low cost and a beef cut a high one, and what matters is the average weighted by what sells. With a 30 % target in the example, the price before tax is 50 ÷ 0.30, which gives 166.67, rounded on the menu to 170. Actual cost on that price is 50 ÷ 170, which is 29 % rounded.
If your country’s tax is 16 %, the price with tax would be 170 × 1.16 = 197.20, shown on the menu as 199 or 195 depending on your rounding policy. What you must never do is calculate cost on the price with tax: the tax is not your revenue, and doing so would make you believe you earn more than you do.
The price is also compared with what a guest expects to pay at a hotel in your segment, and sometimes the market will not accept 170. Then the decision is to change the recipe, change the portion or accept a higher cost on that dish and offset it with others. All three are legitimate decisions; what is not legitimate is not knowing which one you are making.
The cases that only exist in a hotel
This is where the standard recipe of a hotel restaurant parts ways with that of any other restaurant. The same dish has several destinations, and each destination changes the cost or the revenue.
- Room service (/room-service): the same fish is served with packaging, disposable cutlery and a trip. If packaging costs 8, cost per portion rises to 58, and at the same 170 price the cost goes to 34 %. You have to decide whether room service carries a service charge or whether that cost is accepted.
- Breakfast included in the rate: the guest does not pay for breakfast at the restaurant, but the hotel still bears its cost. The buffet’s standard recipe, divided by breakfasts served, is the cost the front desk should recognize as hotel food consumption, with a fixed and documented allocation value.
- Banquets: the per-person menu is costed with standard recipes multiplied by the guaranteed number, plus an explicit overproduction margin, so the price per cover is not decided by eye.
- Corporate agreement: if the company has a spending cap per night, knowing the cost of the traveler’s menu tells you how much margin is left inside that cap.
- Pool bar: smaller portions or a different presentation of the same dish need their own recipe, not a discount on the restaurant’s.
Keeping the recipe alive
A standard recipe costed once and filed in a folder is worth little by the third month, because the price of fish changed. What makes the recipe useful is that each ingredient’s cost updates with every purchase, and cost per portion recalculates on its own. That way, when fish goes from 160 to 190, the controller sees that week that the dish went from 29 % to 33 % and decides whether to adjust the price, the portion or the menu.
The recipe also has to be checked against the reality of the kitchen (Kitchen display) from time to time: weigh five plates per shift and compare. If the kitchen serves 230 grams of fish instead of 200, the recipe is right but the portion is not, and that is a different problem handled with training and portioning tools. The food and beverage director (Food and beverage) is usually the one who closes that loop between recipe, purchasing and station.
Cost per portion is the sum of each ingredient at its usable cost, meaning purchase price divided by yield, divided by the portions in the batch. From cost you move to price with the target percentage and before tax, and in a hotel the same dish is costed separately for room service, included breakfast and banquets.
What to do this week
- Pick the ten best-selling dishes at your hotel restaurant and schedule a session with the chef, a scale and the latest invoices.
- Measure the yield of the three main proteins with three lots each, and write down the average.
- Cost the ten recipes per batch and calculate the cost per portion of each.
- Compare cost per portion against the menu price before tax and calculate the actual cost percentage of each dish.
- Define the allocation value of the included breakfast from the buffet recipe and agree it with the front desk and the controller.
- Cost separately the room service version of the three dishes that go to rooms most often, including packaging.
Inn Restaurant stores standard recipes with yield per ingredient, updates cost per portion with every purchase and calculates theoretical cost per revenue center from what was sold, including the included breakfast and room service. If you want to see how a dish is costed and how its percentage shifts when fish goes up, the 15-minute demo is booked on the contact page (contact).
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