The Four Categories of Menu Engineering
Menu engineering, developed by Cornell professors Kasavana and Smith in 1982, categorises every menu item by two dimensions: profitability (contribution margin) and popularity (number sold). The result is four quadrants:
- Stars: High profit, high popularity. These are your best items — protect them, feature them prominently, and never discount them.
- Plowhorses: Low profit, high popularity. These sell well but don't make much money. Your goal is to reduce their cost or increase their price without killing demand.
- Puzzles: High profit, low popularity. These could make you money if more people ordered them. They need better positioning, description, or promotion.
- Dogs: Low profit, low popularity. Remove them or redesign them completely. Their presence on the menu has an opportunity cost.
Calculating Contribution Margin
Contribution margin is selling price minus food cost — not gross profit margin percentage. A pasta dish selling for $14 with $3 food cost has an $11 contribution margin. A steak selling for $38 with $20 food cost has an $18 contribution margin but only a 47% margin percentage. Menu engineering uses absolute contribution margin because each item sold contributes a fixed dollar amount to overheads and profit regardless of percentages.
Menu Psychology and Design
Where you place items on a menu significantly affects what customers order:
- The top-right corner of a single-page menu receives the most attention — place your highest-margin Star here
- Boxes and borders draw the eye — use them to highlight high-margin items
- Anchoring: listing an expensive item first makes everything below it seem reasonably priced
- Removing currency symbols reduces price sensitivity — "14" reads as less than "$14.00"
- Descriptive menu language ("slow-braised", "hand-crafted", "locally sourced") increases perceived value and willingness to pay
The Seven-Item Rule per Category
Research consistently shows that menus with seven or fewer items per category perform better than those with more. More choice creates decision fatigue and leads customers to default to familiar, often lower-margin items. Restaurants that reduced their menus to fewer items consistently report higher average spend and faster table turns.
Running a Menu Engineering Analysis
Using your POS sales data:
- List every menu item with its sales volume and selling price for the period
- Calculate the food cost for each item (from your recipe costings)
- Calculate contribution margin per item (price minus food cost)
- Calculate average contribution margin across all items
- Calculate average sales volume across all items
- Plot each item: above/below average CM and above/below average volume
- Act on each quadrant: promote Stars, reprice Plowhorses, position Puzzles, eliminate Dogs
OneScale's sales reporting exports the item-level data needed for this analysis in minutes.
