Extra Egg or Saba on a Silog Plate: Costing Add-Ons Without Losing the Margin

Adding a fried egg or saba banana to a silog meal sounds like a small favour. To a customer it is one more item; to a busy breakfast counter it may also mean another pan, cooking oil, a longer queue and a larger plate. The proper question is not whether eggs or bananas are cheap today, but what one fully served add-on costs the business and whether diners value it at the chosen price. The tapsilog costing worksheet establishes the base plate before these extras are added.

What to prepare and measure

Keep the existing silog portion unchanged and define one extra precisely: one cooked egg or a weighed serving of peeled, cooked saba. Divide egg spending by usable eggs. For saba sold by weight, weigh the actual cooked yield and divide its total purchase cost by the number of standard portions. Record extra oil, fuel, packaging and any staff time that genuinely changes the cost or limits service capacity. For the banana option, choose the appropriate saba ripeness before fixing the serving weight.

Method and decision points

1. Choose a standard portion: one whole cooked egg or a measured saba portion. Demonstrate the plating on the existing plate and takeout box; if the extra does not fit without crushing other food, include the larger packaging cost.
2. Measure actual purchase yield. Note cracked eggs and fruit that must be discarded. Keep the unit calculation simple: total ingredient spending divided by usable units, rather than by quantities that were never saleable.
3. Prepare ten add-ons at the usual service pace. Record oil, fuel, pan occupancy and additional staff minutes. Count an egg as ready only when both white and yolk are firm; egg mixtures should reach 71°C. Include the cost of rejected or unsold portions in the trial.
4. Calculate incremental contribution as add-on selling price minus variable costs. Include additional paid labour when it is genuinely incremental. Record existing staff time as a capacity constraint, and do not deduct the same labour again as fixed overhead.
5. Compare adding the item to every breakfast automatically with a truly optional add-on. An automatic inclusion raises the cost of meals purchased by customers who did not want the extra and may increase plate waste.
6. After a week count purchases, extras actually sold, returned or unsold add-ons, and customer complaints. Revise the price or preparation schedule using this observed pattern, not a competing stall’s unverified margin.

Sources: Source 1 Source 2

Why this approach works

An illustrative cooked-egg extra priced at ₱18 with ₱10 of egg, oil and incremental handling would contribute ₱8 before fixed overhead. A banana extra at ₱15 with ₱9 of direct cost would contribute ₱6. Those figures are only a mathematical demonstration, not an observation about Philippine egg or banana prices. A higher contribution per item does not guarantee greater total earnings if it slows service or is rarely ordered.

Costs, adjustments and common mistakes

Separately test whether the egg can be cooked to order or safely cooked in a short service batch. Leaving cooked eggs warm for long periods to save a few seconds is an unacceptable shortcut. For a counter with many low-value transactions, a written add-on price and consistent portion are more useful than a different quote each morning. Allow customer choice between the extra and a vegetable or fruit side. Source 1

A sound add-on offer has three properties: the extra improves the plate, the charge is transparent, and the canteen knows its incremental contribution after actual waste.