Recipe Costing From Scratch: Are You Guessing Your GP?

By On The Pass Consultancy | Category: Kitchen Efficiency | Reading time: 7 min | Keywords: recipe costing UK, food cost percentage catering, gross profit catering UK, menu costing, food GP restaurant

Ask most catering operators what gross profit they're running on their menu and you'll get one of three answers. A confident figure that turns out to be a rough estimate. A food cost percentage that gets confused with GP. Or silence. In 35+ years in hospitality, I can count on one hand the independent operators I've walked into who could tell me — dish by dish — what their actual gross profit was, and back it up with a costed recipe card.

That's not a criticism. Recipe costing is time-consuming, and in a busy kitchen it almost always gets deprioritised in favour of the hundred things that feel more urgent. But the cost of not doing it is real, it's ongoing, and in most operations it's significantly higher than operators realise.

This article walks through how to cost a recipe properly, what a realistic GP target looks like across different types of UK catering businesses, and the three places where most operators are quietly losing margin without knowing it.

Food Cost and Gross Profit: Not the Same Thing

Before getting into the mechanics of recipe costing, it's worth being precise about terminology — because the confusion between food cost percentage and gross profit is one of the most common financial blind spots in UK catering.

Food cost percentage is the cost of the ingredients in a dish expressed as a percentage of the selling price. If a dish costs £3.20 to make and sells for £10, the food cost percentage is 32%. Gross profit is what remains — 68% in that example. It's the money that has to cover labour, overheads, utilities, rent, and everything else before a penny of actual profit lands at the bottom of your P&L.

The reason this distinction matters is that operators tend to focus on keeping food costs within a target range — "under 30%", "under 32%", whatever benchmark they've absorbed from somewhere — without properly considering whether the resulting GP is actually sufficient to sustain the business. You can be running 28% food cost across a menu and still be operating at a loss, if your menu mix skews toward lower-margin dishes, your portion sizes have drifted, or your supplier prices have risen since you last costed the menu.

GP is the number that tells you whether the business is viable. Food cost percentage is just one of the inputs.

Why Most UK Catering Businesses Are Guessing

The gap between what's on a recipe card and what's actually being plated during a busy Friday night service is the most consistent profit leak we find when we audit a commercial kitchen. A chef uses a slightly more generous portion of protein because it looks better on the plate. A commis adds an extra splash of sauce because they haven't been shown the measured amount. The dessert that's supposed to use 120g of ingredients uses 150g because nobody checked after the first week.

None of these feels significant in the moment. Across every dish on a full menu, over a week of service, the cumulative effect on your gross profit can be substantial. A 20g portion drift on a protein dish across 200 covers a week adds up — and across a year, the cost of that drift can run to thousands of pounds that simply don't appear in any single transaction.

The second most common issue is price drift. Ingredient costs from your suppliers change — sometimes quarterly, sometimes more frequently. But recipe costings rarely get updated at the same frequency. A dish costed at 29% food cost eighteen months ago might be running at 36% today, and nobody has noticed because the selling price hasn't changed and the menu hasn't been reviewed. The GP shortfall gets absorbed into the general business results and attributed to something else.

The third issue is that many operators built their menus intuitively — based on experience, competitor pricing, and judgement about what will sell. That's a legitimate starting point for creativity, but it's not a substitute for knowing your numbers.

How to Cost a Recipe Properly

Proper recipe costing starts with a recipe card that reflects exactly what is being produced and served — not an approximation, and not what was decided during the initial tasting. Every ingredient, including garnishes, sauces, oils used in cooking, and any condiments included in the dish, should be listed with a quantity that matches what's actually being produced and plated.

Once you have an accurate recipe card, the costing process is straightforward.

Start with your ingredient costs at your current purchasing price, broken down to a usable unit — per kg, per litre, per gram. Your supplier invoices are the source for these figures, not the price you remember from six months ago. If you're buying a 5kg bag of plain flour for £4.50, your cost per gram is £0.0009. Applied across a full recipe, those fractions add up to a meaningful portion of your dish cost.

Apply the quantity from your recipe card to each ingredient cost and total the result. That's your raw dish cost. Add a waste allowance — typically 5–10% depending on the ingredient and how it's prepared — and you have your actual food cost per portion.

From there, divide the food cost by your target food cost percentage to arrive at your minimum selling price. If your target is a 32% food cost (which implies a 68% GP), and your dish costs £4.40 to produce, the minimum selling price to hit that target is £4.40 ÷ 0.32 = £13.75. Whether you price it at £14, £14.50, or something else depends on your market positioning and the broader menu — but at least you know the floor, and you know what happens to your GP if you go below it.

What a Realistic GP Target Looks Like

GP benchmarks vary significantly across different types of UK catering operations. Using the wrong benchmark for your sector can cause you to either leave money on the table or price yourself out of your market.

For full-service restaurants in the UK, a food GP of 65–70% is the standard target range. This needs to be high enough to cover labour — typically your largest cost — as well as overheads, property, and generate a net margin. Operations consistently running below 62% GP in this sector are almost always either pricing too low, carrying too much waste, or both.

Casual dining and café operations typically work in the 60–68% range. Higher volume and lower average spend mean the maths requires tighter control per dish to compensate for slimmer margins, but the benchmark is slightly lower because operating costs are generally leaner.

Contract catering — staff restaurants, educational catering, healthcare — often operates at 55–62% GP targets, because overheads are structured differently and the food provision sits within a broader service contract. If you're running a contract catering operation and benchmarking your GP against full-service restaurant figures, you're measuring against the wrong standard and likely making decisions based on a misleading picture.

Central production kitchens, producing at scale for multiple sites, can achieve GPs at the higher end of the range through purchasing volume and production efficiency — but only if recipe costing and portion control systems are genuinely tight at every stage of the process. Scale amplifies problems as much as it amplifies advantages.

The Three Places Operators Lose Margin Without Realising

Across 35+ years in hospitality and hundreds of kitchen audits and consultancy engagements, the same three margin leaks appear consistently regardless of the size or type of operation.

Portion inconsistency is the most common. The fix is operationally simple but requires discipline to maintain — calibrated portion tools, recipe cards displayed at the point of production, and a consistent induction for every team member who handles food. This isn't about running your kitchen like a factory. It's about knowing what the standard is and making it easy for your team to hit it every time.

Menu mix misalignment is subtler. Not all dishes contribute equally to your overall GP, and a menu that looks well-balanced might be pulling your average margin down because your bestsellers happen to be your lowest-GP dishes. A proper menu engineering exercise — mapping each dish by GP contribution against sales volume — often reveals that a handful of pricing or placement changes can meaningfully improve your blended margin without changing what you cook or who you're cooking for.

Purchasing without specification is the third. When you buy on price alone, without a defined product specification, you introduce variability into your food costs that makes accurate costing almost impossible to maintain. A chicken thigh bought to a clear specification — specific weight range, specific trim, specific supplier and grade — costs a predictable amount per portion, week in and week out. A chicken thigh bought from whoever was cheapest this week introduces weight variation, quality variation, and yield variation that can shift your dish cost meaningfully between orders. Your costings become unreliable the moment that variability enters your supply chain.

Making Recipe Costing a Habit, Not a Project

The operators who manage their GP consistently haven't done a heroic costing exercise once and declared victory. They've built recipe costing into how they work. New dishes get costed before they go on the menu. Supplier price changes trigger a review of affected dishes. Portion weights are part of normal kitchen management, not an occasional audit.

The upfront investment to cost a full menu properly — typically one to two days depending on the size and complexity of the menu — pays back quickly. In our experience, operators going through a thorough recipe costing exercise for the first time consistently identify GP improvements of 3–8 percentage points that are achievable without changing the menu or the suppliers.

On a business with a turnover of £500,000 a year, a 5 percentage point improvement in food GP is £25,000. That's worth two days of focused work. In most cases, it's worth considerably more than that once you factor in the improved margin stability going forward.

How We Approach Recipe Costing at On The Pass Consultancy

Our menu development service starts with your existing operation — what's on the menu, how it's being produced, and what your current purchasing looks like. We work through a full recipe costing exercise, building or rebuilding recipe cards that reflect what's actually being made and plated in your kitchen, not what was decided at a tasting and never reviewed.

From that baseline, we identify where your GP is being lost and work with you to close the gap — through portion control, menu engineering, purchasing specification, or a combination. The output is a costed recipe pack your kitchen team can actually use day to day, not a spreadsheet that lives on a laptop and rarely gets opened.

If your menu hasn't been properly costed, or your last exercise was more than twelve months ago, the margin you're losing is already paid for several times over by the cost of getting it right.

Ready to find out what your menu is actually making you?

Get in touch for a free initial consultation — we'll look at your operation honestly and tell you exactly where the opportunities are.

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