Project: A Three-Course Menu.
Prawns, rib-eye and chocolate cake make a fine dinner — at 1700 kcal, four allergens and a food cost of 45 % of a 30 price.
A menu is a design with constraints from three directions. The business side: the cost of the ingredients as a share of the price — the food-cost percentage — must leave room for labour, rent and profit; restaurants commonly aim at about 28–35 % (XXXI.5). The diner's side: a set menu should satisfy without overwhelming — about a third to half of a day's energy (XXIII.9). The safety side: every major allergen in it must be declared, and a menu with fewer of them suits more guests (XII.10).
Your design: one starter, one main and one dessert, from three each, and the price per head. The checks use the course's recipe bench: ingredient cost (course price table, per kilogram), energy (USDA composition), and the allergens found in the ingredients. The starting design — prawns, steak and cake at 30 — fails on cost, energy and allergens.
Below: the cost and energy of each course for your choices (course recipe bench), the food-cost percentage at your price, the allergens the menu contains, and the brief.
- Cost a menu and set a price.
- Balance a menu's energy.
- Find and declare allergens.
- Trade off cost, nutrition and safety.
Three constraints at once
The prawn, steak and cake menu costs about 45 % of its price, gives 1,680 kcal and declares 4 allergens: it fails three ways. The rib-eye alone makes a 35 menu hard to cost — even with a light salad and baked fruit it runs to 33 %. A vegetable soup, chicken with rice and greens, and baked fruit meets every check with room to spare, and contains only milk. Swapping one dish at a time and watching which check moves is how chefs actually build a menu.
In practice: cost every recipe from its specification (XXXI.5), including trim and waste; check energy and portion against the guests you serve; list allergens on the menu and train staff to answer (XII.10). Then taste the menu as a sequence — contrast of richness, texture and temperature from course to course (XI.11) — because a menu that passes every check can still be dull.
Cost your next dinner: weigh the ingredients, look up their prices and work out the cost per person. What would you have to charge?
Terms
- Food-cost percentage
- Ingredient cost as a share of the selling price.
- Set menu
- A fixed sequence of courses at one price.
- Major allergens
- Foods that must be declared: milk, egg, wheat, shellfish and others.
- Costing
- Pricing a recipe from its ingredients.
Sources
- USDA FoodData Central, SR Legacy (April 2018), public domain.
- M. L. Kasavana and D. I. Smith, Menu Engineering: A Practical Guide to Menu Analysis, Hospitality Publications, 1982: items classed by popularity (above 70 % of an equal share of sales) and contribution margin (above the menu's average) as stars, plough-horses, puzzles and dogs.
- A teaching value chosen for the course: the right order of magnitude and shape, not a measurement of a particular food.