How to Cost a Recipe: A Step-by-Step Guide for Restaurants

Most kitchens price by feel. A dish “feels like a $24 plate,” so it goes on the menu at $24, and nobody checks whether the food on it costs $6 or $11. That gap is where restaurants quietly bleed money. Costing a recipe fixes it by turning a plate into a number you can defend, and it’s not complicated math. It’s just discipline about a few things line cooks and even seasoned chefs tend to skip, mostly around trim and yield.

Here’s the full process, with real numbers on a real dish.

What does it mean to cost a recipe?

Costing a recipe means figuring out exactly what the ingredients on one finished plate cost you, down to the pinch of salt and the drizzle of oil. That number is your plate cost (also called plate cost or portion cost). Once you know it, you can price the dish, compare it against your target margin, and see instantly which menu items are carrying the kitchen and which are dead weight.

The trap is using the price on the invoice as if it were the price on the plate. A whole salmon side costs $12 a pound at the door, but you don’t serve the skin, the pin bones, or the trim you cut away. The salmon that actually reaches the guest costs more per usable ounce than the invoice says. Ignore that, and every plate is underpriced in a way you’ll never see on a single ticket but will absolutely feel at the end of the month.

Step 1: Break each ingredient down to its as-used cost

Start with the recipe as it’s actually plated, not as it’s written on a prep sheet. List every component that ends up in front of the guest: the protein, the starch, the vegetable, the sauce, the garnish, the oil you sear in, the salt. Yes, the salt. It’s pennies, but pennies across a few hundred covers add up, and the habit of counting everything is what keeps you honest.

For each ingredient, you want two numbers: the as-purchased (AP) price from your invoice, and the quantity you actually use per plate. Weigh things once with a scale rather than eyeballing “a handful.” A handful of green beans is 2 ounces to one cook and 4 to another, and that 2-ounce swing is real money at volume.

Convert everything to a common unit. If salmon is priced per pound and you plate it in ounces, work in ounces (16 to a pound). Sloppy unit conversions are the number one arithmetic error in recipe costing.

Step 2: Adjust for yield, trim, and waste

This is the step almost everyone skips, and it’s the one that matters most. Yield is the percentage of what you buy that you can actually use after trimming, peeling, deboning, and cooking loss. If you buy 5 pounds of salmon side and 4 pounds survive trimming and portioning, your yield is 80%.

To get your true cost per usable unit, divide the AP price by the yield percentage:

Yield varies a lot by ingredient. Whole fish, bone-in cuts, and leafy greens can lose 20 to 50%. Bagged, pre-portioned, or minimally trimmed items lose almost nothing. You don’t need lab precision here, but you do need a realistic number for anything you break down in-house. The fastest way to get it: weigh a case when it comes in, weigh the usable product after prep, and divide. Do it once per ingredient and reuse the percentage until your supplier or spec changes.

Step 3: Add it up — a worked example

Let’s cost a real dish: pan-seared salmon with roasted baby potatoes, green beans, and herb butter. Here’s every component adjusted for yield, then multiplied by the amount on the plate.

Notice the salmon alone is $5.63 — nearly 70% of the plate. That’s normal for a protein-forward dish, and it’s exactly why the yield adjustment matters. Had we used the raw $12/lb invoice price, we’d have costed the fish at $4.50 and undercounted the plate by more than a dollar. Multiply that by 40 salmon plates a night and you’re leaving real money on the pass.

If typing formulas into a spreadsheet isn’t your idea of a good time, this free Recipe & Plate Cost Calculator runs the same math — enter each ingredient, its yield, and the plated quantity, and it returns the plate cost and suggested menu price.

Step 4: Price to your target food cost percentage

Now that you know the plate costs $8.12, you set a price by deciding what percentage of the menu price you want food to represent. Most full-service restaurants target a food cost between 28% and 35%. The formula:

Menu price = plate cost ÷ target food cost %

At a 30% target: $8.12 ÷ 0.30 = $27.07. You’d list the dish at $27 or, more likely, $28 — which lands your actual food cost right around 29% and gives you a cleaner price point. That spread between the raw plate cost and the menu price is what covers labor, rent, utilities, and, if you’ve done the rest of your numbers right, profit.

A word on targets: 30% is a starting point, not a commandment. Signature dishes and high-perceived-value plates can carry a lower food cost percentage (you can charge more than the math suggests). Commodity items like a burger or a bowl of pasta often run higher because guests know roughly what they should cost. The percentage is a lever, not a law. What you can’t do is set prices without knowing the plate cost underneath them, which is the whole point of costing the recipe first.

How often should you re-cost your recipes?

Ingredient prices move, sometimes weekly. A recipe you costed in spring with $9 salmon is a different animal when the same fish hits $14 in the fall, and the menu price you locked in doesn’t magically adjust. Re-cost your top-selling and most expensive dishes at least quarterly, and re-cost any dish immediately when a key ingredient’s price jumps noticeably on an invoice.

Two habits make this painless. First, keep your recipe costs in one place so updating a single ingredient price flows through to every dish that uses it. Second, watch your theoretical food cost (what your recipes say you should be spending) against your actual food cost (what your inventory and invoices say you really spent). A widening gap usually means over-portioning, waste, or theft, not bad math. Re-running a dish through the Recipe & Plate Cost Calculator whenever costs shift takes a couple of minutes and keeps your menu prices honest.

Frequently asked questions

What is the formula for costing a recipe?

For each ingredient: as-used cost = AP price ÷ yield %, then multiply by the quantity on the plate. Sum every ingredient’s line cost to get the plate cost. To price it: menu price = plate cost ÷ target food cost %.

What is a good food cost percentage for a restaurant?

Most full-service restaurants aim for 28% to 35%. Lower can mean you’re leaving value on the table; much higher and margins get thin. Treat it as a target you flex by dish rather than a single fixed number.

Why do I need to account for yield when costing?

Because you don’t serve everything you buy. Trim, bones, skin, peels, and cooking loss mean the usable portion costs more per ounce than the invoice price. Dividing the purchase price by the yield percentage gives you the real as-used cost.

Should I include labor in my plate cost?

Recipe costing typically covers ingredients only, and the menu price you calculate from your food cost target is what covers labor and overhead. Some operators add a small prep-labor figure to labor-intensive items, but keep it separate from the raw food cost so your percentages stay comparable across dishes.

How do I cost a recipe that uses a batch item like sauce or compound butter?

Cost the full batch, divide by the number of portions it yields, and use that per-portion cost as a single line in the plated dish. For example, a butter batch costing $9.00 that yields 20 portions is $0.45 per plate.

How often should recipe costs be updated?

Re-cost high-volume and high-cost dishes at least quarterly, and update any recipe right away when a key ingredient’s price shifts. Prices move constantly, so a cost you calculated months ago may no longer reflect what the dish actually costs today.