Most restaurant owners think breakfast costing is straightforward - just bread and toppings, right? Wrong. Those tiny garnishes, butter portions, and cutting losses can silently destroy your margins. Each overlooked cent per dish costs you hundreds annually.
Why breakfast cost price calculation is different
Breakfast seems simple: bread, toppings, done. But your profit lives in those details. A basic cheese sandwich actually contains way more components than most owners realize:
- Bread (per slice)
- Butter or margarine
- Cheese (exact amount)
- Garnish (tomato, cucumber, lettuce)
- Decoration (parsley, radish)
- Optional sauce
These small amounts compound fast. Just 10 cents extra per breakfast equals €520 yearly losses at 100 servings weekly.
⚠️ Note:
Always calculate using your selling price excluding VAT. Breakfast falls under 9% VAT, so €8.50 including VAT equals €7.80 excluding VAT.
Gather all ingredients and prices
List every single ingredient touching that plate. Don't skip the tiniest garnish. Then grab your supplier invoices for current purchase prices.
💡 Example: Full breakfast
Ingredients per serving:
- 2 slices of bread: €0.32
- 10g butter: €0.12
- 30g cheese: €0.45
- 20g ham: €0.38
- 1 egg: €0.22
- 50g lettuce/tomato: €0.18
- Garnish: €0.08
Total ingredient costs: €1.75
Calculate portion sizes exactly
Weigh portions multiple times to find your true average. That cheese slice might be 25 grams one day, 35 grams the next. Consistency saves 15 cents per portion.
Tips for accurate portion control:
- Use a kitchen scale for toppings
- Train your staff on standard portions
- Take photos of "correct" portions
- Regularly check if portions stay consistent
Account for waste and cutting loss
Breakfast ingredients create cutting losses on vegetables and bread. Factor in 10-15% waste on fresh products like lettuce, tomatoes, and cucumbers.
💡 Example: Cutting loss calculation
Tomatoes: €3.20/kg, but 15% cutting loss from stems and bad pieces.
Actual price: €3.20 / 0.85 = €3.76/kg
For 50g tomato you're paying: €0.19 instead of €0.16
Calculate the food cost percentage
Divide ingredient costs by selling price excluding VAT, then multiply by 100.
Formula: Food cost % = (Ingredient costs / Selling price excl. VAT) × 100
💡 Example: Food cost calculation
Ingredient costs: €1.95 (including waste)
Menu price: €8.50 incl. 9% VAT = €7.80 excl. VAT
Food cost: (€1.95 / €7.80) × 100 = 25%
Food costs between 25-30% work well for breakfast. Above 35% and your margins start bleeding.
Breakfast specific cost factors
Based on real restaurant P&L data, breakfast carries unique cost challenges:
- Fresh bread: Daily delivery means higher purchase prices
- Eggs: Prices fluctuate dramatically, update regularly
- Dairy: Short shelf life creates waste
- Garnishing: Looks cheap, adds up fast
⚠️ Note:
Breakfast depends on volume and speed. Train staff to maintain consistent portions, or your costs will spiral out of control.
How do you calculate breakfast cost price? (step by step)
Make an ingredients list
Write down every ingredient that goes on the plate, including butter, garnish and decoration. Look up the exact purchase prices from your supplier.
Weigh the portion sizes
Measure a few times how many grams of cheese, ham and vegetables you use per portion. Calculate with the average to get a reliable cost price.
Account for cutting loss and waste
Add 10-15% waste to fresh products like vegetables and bread. This gives you the actual cost price per ingredient.
Add up all costs
Sum all ingredient costs per portion together. This is your total cost price for this breakfast dish.
Calculate the food cost percentage
Divide your cost price by your selling price excluding VAT and multiply by 100. Aim for 25-30% for breakfast.
✨ Pro tip
Audit your top 5 breakfast sellers every 6 weeks for portion creep and ingredient cost changes. These dishes typically represent 70% of breakfast revenue, so controlling them controls your profitability.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
Was this article helpful?
Frequently asked questions
What food cost percentage is normal for breakfast dishes?
Standard breakfast food costs run 25-30%. Above 35% makes maintaining decent margins nearly impossible. Most successful breakfast operations target 28% or lower.
How often should I update breakfast ingredient costs?
Check egg, dairy, and bread prices monthly since they fluctuate most. Other ingredients can be reviewed quarterly unless you notice major supplier price changes.
Should I include tiny amounts like butter and parsley in calculations?
Absolutely include everything. Butter costs €0.10 per serving, parsley adds €0.05 - that's €150 monthly savings at 1000 breakfast covers. Small amounts create big impacts.
📚 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.
Calculate your breakfast and brunch margins exactly
Breakfast and brunch seem cheap, but buffet waste and portion sizes make it complex. KitchenNmbrs calculates your actual costs per cover. Start free.
Start free trial →