Your worst-performing menu items drain profits while occupying valuable menu space. Smart ingredient adjustments can transform these Dogs into profitable dishes without compromising taste. Calculate the exact financial impact before making changes.
What is a Dog dish?
Menu engineering classifies a Dog as a dish that:
- Sells poorly (low popularity)
- Generates little profit (low margin or high food cost)
- Takes up space on your menu without contributing
Your goal: boost profitability through strategic ingredient adjustments, or eliminate it entirely.
Calculate the current margin impact
Start by measuring your baseline situation:
💡 Example: Vegetarian lasagne
Selling price: €18.50 incl. 9% VAT = €16.97 excl. VAT
- Ingredient costs: €7.80
- Sold per month: 15 portions
- Food cost: (€7.80 / €16.97) × 100 = 46%
Monthly margin: (€16.97 - €7.80) × 15 = €137.55
This 46% food cost is excessive. Vegetarian dishes should run 25-30%.
Identify expensive ingredients
List all ingredients with per-portion costs. Spot your biggest cost drivers:
💡 Ingredient analysis:
- Mozzarella (200g): €3.20
- Parmesan cheese (50g): €1.80
- Zucchini (150g): €0.90
- Tomato sauce (100ml): €0.45
- Lasagne sheets (100g): €0.85
- Other (herbs, oil): €0.60
Total: €7.80
Cheeses represent 64% of costs (€5.00 of €7.80). That's your savings target.
Calculate adjustment options
Run different scenarios and measure their impact:
💡 Scenario 1: Reduce mozzarella
From 200g to 150g mozzarella per portion:
- Savings: 50g × €16/kg = €0.80 per portion
- New ingredient costs: €7.00
- New food cost: (€7.00 / €16.97) × 100 = 41%
- Extra margin per portion: €0.80
Monthly impact: €0.80 × 15 = €12 extra
💡 Scenario 2: Replace parmesan
Substitute parmesan with cheaper hard cheese:
- Savings: €1.80 - €0.90 = €0.90 per portion
- New ingredient costs: €6.90
- New food cost: (€6.90 / €16.97) × 100 = 41%
- Extra margin per portion: €0.90
Monthly impact: €0.90 × 15 = €13.50 extra
Combine adjustments for maximum impact
After managing kitchen operations for nearly a decade, I've learned that layering multiple small changes often delivers better results than one dramatic shift:
💡 Combined scenario:
- Less mozzarella: -€0.80
- Cheaper hard cheese: -€0.90
- New ingredient costs: €6.10
- New food cost: 36%
- Extra margin per portion: €1.70
Monthly impact: €1.70 × 15 = €25.50 extra
⚠️ Heads up:
Test small adjustments first. Too many changes at once can affect taste and quality. Get feedback from your team and guests.
Calculate the break-even point
Sometimes raising the price makes more sense than adjusting ingredients:
Formula for minimum price at desired food cost:
Minimum price excl. VAT = Ingredient costs / (Desired food cost % / 100)
💡 Calculate price increase:
For 30% food cost at €7.80 ingredients:
- Minimum price: €7.80 / 0.30 = €26.00 excl. VAT
- Incl. VAT: €26.00 × 1.09 = €28.34
- Current price: €18.50
Price increase needed: €9.84 (53% more)
A 53% price hike is typically unrealistic. Ingredient adjustments offer more practical solutions.
Monitor the results
Track performance after implementing changes:
- Does the dish maintain its sales frequency?
- Are you receiving complaints about taste or quality?
- Does the actual food cost match your projections?
If sales decline due to adjustments, calculate whether higher per-portion margins offset the volume loss.
How do you calculate the margin impact of ingredient adjustment?
Measure the current situation
Calculate the food cost of the Dog dish: (ingredient costs / selling price excl. VAT) × 100. Also count how many you sell per month and what the current monthly margin is.
Identify the most expensive ingredients
Make a list of all ingredients with costs per portion. Find which ingredients cost the most - that's where the biggest savings opportunity is.
Calculate different scenarios
Test what it delivers if you reduce or replace expensive ingredients. Calculate the new food cost and the extra margin per portion. Multiply by the number of portions sold for the monthly impact.
✨ Pro tip
Target your Dog's three most expensive ingredients within the next 48 hours - they typically account for 60-80% of total costs. Calculate each potential substitution's monthly margin impact before making changes.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
What is an acceptable food cost for a Dog dish?
Most dishes should maintain 25-35% food cost. For Dogs you're keeping, target maximum 30% to ensure profitability.
Should I adjust ingredients or raise the price?
Ingredient adjustments usually work better. Dogs already sell poorly, so price increases could further reduce sales. Start with small ingredient changes first.
How do I know if an adjustment affects the taste too much?
Test the modified version internally with your team first. Get honest feedback. If the difference is noticeable, target other expensive ingredients instead.
What if the dish still sells poorly after adjustment?
You have two choices: remove it from the menu or replace it with a potentially popular dish. A profitable Dog beats a losing one, but a Star performs best.
Can I adjust multiple ingredients simultaneously?
You can, but proceed step by step. Adjust one ingredient, test results, then modify more if needed. This maintains control over taste and quality.
How often should I recalculate ingredient costs for adjusted Dogs?
Review costs monthly, especially for volatile ingredients like dairy or proteins. Supplier price changes can quickly erode your calculated savings and require new adjustments.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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