A burger bar in Etiler, Istanbul did not redesign its menu. It added three add-on lines: extra cheese 18₺, double patty 35₺, truffle mayo 12₺. Three months later, 38% of customers picked at least one, average basket grew 19%, and net margin climbed 42%. Subway has used this playbook for decades; in a QR menu it collapses into a single checkbox group.
Why add-ons inflate net margin by double digits
Fixed costs — rent, labor, kitchen overhead — are already paid. An 18₺ extra cheese line carries roughly 4₺ of actual food cost, a 78% contribution margin. Same customer, same table, same minutes of service. The marginal sale is essentially free.
In the Etiler case, 30 days produced 4,200 orders. 1,596 carried at least one add-on. Add-on revenue alone was 38,000₺; incremental COGS was 9,500₺. No new dish, no new staff — just one menu change moved the P&L for the month.
How to design the upsell screen in a QR menu
On thMenu we attach an "Add-ons" group to the product detail screen. Three rules: maximum 5 options, price always visible on the right, no pre-checked defaults. Forcing a default reads as pressure and increases cart abandonment.
- Tier 1 (volume): 10-20₺ — extra cheese, extra sauce
- Tier 2 (mid): 25-40₺ — double protein, premium cheese
- Tier 3 (anchor): 50₺+ — truffle, beef upgrade. Rarely chosen, but makes the others look cheap
Common mistakes and how to avoid them
First mistake: listing "extra fries" as an add-on when fries already sit in the basket. The customer either orders fries or does not — fries belong in cross-sell, not add-on. True add-ons enhance the existing dish, they do not substitute for it.
Second mistake: making the add-on step mandatory. Forms that say "make a selection to continue" double abandonment. Third mistake: listing more than 8 options — decision fatigue collapses the conversion of every option, even the popular ones.
FAQ
Should I lower the base dish price when I add add-ons? No. The base price stays. Add-ons stack on top. Lowering the base erodes perceived value of the whole menu.
Which category gets the highest attach rate? In the Etiler data: extra cheese 58%, truffle mayo 22%, double patty 19%. Low price plus high volume always wins first.
Do add-ons conflict with combo meals? No. Combos are a bundle; add-ons sit on top. thMenu prices the combo + add-on stack automatically.
Found this helpful? Share it.
Related articles
7 Smart Ways to Place QR Codes in Your Restaurant
Placement matters more than you think. These seven strategies maximize QR code s…
How to Reduce Waiter Workload by 40% Without Firing Anyone
Smart digital tools don't replace your team — they free them to focus on what ma…
12 Concrete Benefits of QR Menus (Backed by Real Data)
From eliminating print costs to boosting average order value by up to 31%, here …