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Mustard Whopper — Secret Menu Hack & How to Order

Mustard Whopper — Secret Menu Hack & How to Order
The Mustard Whopper is the easiest hack on the entire Burger King secret menu: it's just a Whopper made with mustard instead of the standard mayonnaise. That one swap changes the flavor profile noticeably — tangier and sharper, with fewer calories from the sauce. If you're not a mayo fan, the Mustard Whopper is a must-try, and since it's just a condiment change, it costs the same as a regular Whopper and any location can make it.
To order a Mustard Whopper, simply ask for a Whopper with mustard instead of mayo. There's no price difference — you pay the standard Whopper price (around $3.49). Some fans go further and ask for extra mustard or add other tweaks, but the core hack is the mayo-to-mustard swap.
Mustard Whopper at a glance
| Detail | Info |
|---|---|
| What it is | A Whopper with mustard instead of mayonnaise |
| How to order | Ask for a Whopper with mustard instead of mayo |
| Base item | Whopper |
| Price | Same as a regular Whopper (~$3.49) |
| Calories | — (varies with condiment swap) |
Free condiment swap; same price as a Whopper. Available at essentially all locations. Prices vary by location.
How to order the Mustard Whopper
Just say "a Whopper with mustard instead of mayo." It's one of the few secret-menu items that virtually every cashier can process instantly, since it's a standard modification rather than a special build. Want it tangier? Ask for extra mustard. For the base Whopper price, see the burgers guide.
Is the Mustard Whopper worth it?
If you find the regular Whopper a little rich or you simply prefer mustard, yes — it's a genuinely different, brighter-tasting burger for the same price. It's also a slightly lighter option since mustard has far fewer calories than mayo. As easy hacks go, this is the gold standard.
