Picture this: you're serving stamppot as your daily special, but you're not sure if you're actually making money on it. Unlike regular menu items, stamppot involves fluctuating vegetable prices, significant prep losses, and ingredients you often add by instinct rather than measurement. Here's how to nail down the exact cost price, including every hidden expense that could be eating into your profits.
Why stamppot cost prices are tricky
Stamppot seems straightforward: potatoes, vegetables, sausage. But calculating its true cost involves several pitfalls that catch many restaurant owners off guard.
⚠️ Watch out:
Most operators only count main ingredients and skip butter, milk, spices, and garnish. This oversight can bump your actual cost price up by 20-30%.
The biggest challenges you'll face:
- Seasonal vegetable price swings
- Potato peeling losses (15-20%)
- Different sausages each day
- Butter, milk, and spices get overlooked
- Portion sizes that vary wildly
Gather and weigh all ingredients
Start by preparing one perfect portion of stamppot. Weigh everything that goes into it - yes, even those seasonings you normally eyeball.
💡 Example stamppot with kale:
For 1 portion of 400 grams:
- Potatoes (raw): 200g
- Kale (raw): 120g
- Smoked sausage: 80g
- Butter: 15g
- Milk: 30ml
- Salt, pepper, nutmeg: 2g
Total raw weight: 447g → becomes 400g after cooking
Don't forget to measure garnishes and sides:
- Bacon bits or onions as topping
- Extra butter on the plate
- Mustard or other condiments
- Pickles or sauerkraut accompaniments
Calculate peeling and cooking losses
Stamppot involves multiple types of waste that directly impact your bottom line.
💡 Example losses:
Potatoes €1.20/kg:
- Peeling loss: 18%
- You get 82% usable product
- Real price: €1.20 ÷ 0.82 = €1.46/kg
For 200g you need 244g raw potatoes
Standard loss percentages for stamppot components:
- Potatoes: 15-20% peeling loss
- Carrots: 10-15% scraping loss
- Onions: 8-12% peeling loss
- Kale: 25-30% (stems, damaged leaves)
- Smoked sausage: 5% (casing, trimming)
Calculate cost price per ingredient
Now you'll determine what each component costs per portion, factoring in all waste.
💡 Example cost price calculation:
Stamppot with kale per portion:
- Potatoes: 244g × €1.46/kg = €0.36
- Kale: 160g × €2.80/kg = €0.45
- Smoked sausage: 85g × €8.50/kg = €0.72
- Butter: 15g × €6.20/kg = €0.09
- Milk: 30ml × €1.10/liter = €0.03
- Spices: €0.02
Total cost price: €1.67 per portion
Remember to account for additional labor costs. Stamppot requires more prep time than simpler dishes due to extensive peeling and chopping.
Calculate food cost percentage
Now you can determine if your stamppot actually generates profit.
💡 Example food cost:
You sell stamppot for €14.50 including VAT:
- Selling price excl. VAT: €14.50 ÷ 1.09 = €13.30
- Cost price ingredients: €1.67
- Food cost: (€1.67 ÷ €13.30) × 100 = 12.6%
That's a low food cost - there's room for premium ingredients
Target food cost for daily specials typically ranges from 25-35%. If you're significantly below this range, consider upgrading portion sizes or ingredient quality to deliver better value.
⚠️ Watch out for seasons:
Vegetable prices swing dramatically throughout the year. Review your cost calculations monthly and adjust pricing accordingly. Winter kale can cost 50% more than autumn varieties.
Calculate variations and alternatives
Stamppot's versatility makes it ideal for rotating different vegetables based on cost and availability. From analyzing actual purchasing data across different restaurant types, establishments that track multiple stamppot variants typically achieve 15-20% better profit margins than those using single-recipe costing.
- Sauerkraut stamppot: often more economical due to extended shelf life
- Hutspot: carrots and onions maintain relatively stable pricing
- Endive stamppot: can become expensive during off-season periods
- Spinach stamppot: beware of the substantial cooking reduction (70%)
Food cost management tools like KitchenNmbrs can track these variations and automatically recalculate costs when ingredient prices shift.
How do you calculate stamppot cost price? (step by step)
Make one perfect portion and weigh everything
Prepare one stamppot portion the way you serve it. Weigh all ingredients including butter, milk, spices, and garnish. Also note the final weight after cooking.
Calculate peeling and cooking losses per ingredient
Measure how much you throw away when peeling and cutting. Potatoes have 15-20% peeling loss, kale 25-30% due to stems. Divide your purchase price by the yield percentage.
Calculate the total cost price per portion
Multiply the weight of each ingredient by the actual kilogram price (after losses). Add everything up for the total cost price per portion. Don't forget garnish and side dishes.
✨ Pro tip
Recalculate your stamppot costs every 6 weeks during peak season transitions. Leafy greens like kale and endive can swing 40-60% in price, and a quarterly review prevents profit erosion.
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
Should I include labor costs in stamppot cost price?
Food cost calculations only include ingredients, not labor. However, stamppot demands extra prep time for peeling and chopping. Factor this additional labor into your final pricing since it requires more work than dishes like pasta.
How do I handle seasonal vegetable price fluctuations?
Review your cost calculations monthly and adjust pricing as needed. Winter kale can cost 50% more than seasonal varieties. Consider temporarily switching vegetables or increasing your price by €1-2 during expensive periods.
What if my stamppot food cost comes in under 20%?
Low food costs indicate good profitability but might signal you're not delivering enough value. Consider larger portions, premium sausages, or additional garnishes to enhance the customer experience.
Can I price different stamppot variations the same?
Calculate each variation separately since costs vary significantly. Sauerkraut stamppot typically costs less than endive versions. You can use either averaged pricing or different prices per variation.
How do I calculate cost price for large batch cooking?
Start with single-portion calculations, then multiply by your batch size. Loss percentages remain constant regardless of quantity, so your per-portion costs stay accurate when scaling up.
What's the best way to track ingredient waste percentages?
Weigh ingredients before and after prep for one week to establish your kitchen's specific waste rates. These percentages can vary based on supplier quality, staff skill, and equipment sharpness.
📚 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.
Food cost calculation for every type of kitchen
Sushi, pizzeria, steakhouse or vegan concept — every kitchen type has its own challenges. KitchenNmbrs adapts to your concept. Try it free for 14 days.
Start free trial →