Mushroom Swiss Croissan'wich® w/ Egg (Chicken Saus Price at Burger King (2026)
A Mushroom Swiss Croissan'wich® w/ Egg (Chicken Saus costs S$9.15 at Burger King in Singapore (updated September 2026).
A Mushroom Swiss Croissan'wich® w/ Egg (Chicken Saus at Burger King costs S$9.15 in Singapore as of September 2026. That's about 4% below the typical Burger King breakfast item — the 7th-cheapest of 19 we track. It's available at around 63 Burger King locations across Singapore. Prices are sourced from delivery platforms and refreshed regularly. Browse the latest Burger King breakfast prices and find the cheapest pick on MenuPriceToday.
How this compares in Breakfast
19 items tracked| This item | S$9.15 |
| Breakfast median | S$9.55 |
| Cheapest — Chicken Croissan'wich® | S$6.60 |
| Most expensive — Double Mushroom Swiss Croissan'wich® w/ Egg Meal | S$13 |
| vs Breakfast median | −4% |
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