Korean Bulgogi Cheesesteak Sub with Gochujang Mayo

When Korean bulgogi meets a classic Philly cheesesteak, the result is pure magic. Thinly shaved ribeye marinated in soy, sesame, and brown sugar, seared on a screaming-hot flat top with onions, then buried under melty American cheese and piled into a toasted brioche roll.

A swipe of spicy gochujang mayo ties it all together. This is the ultimate fusion sub—savory, sweet, smoky, and impossibly cheesy.

This Korean bulgogi cheesesteak sub takes two beloved sandwiches and fuses them into one unforgettable meal. The beef gets a quick marinade that echoes traditional bulgogi, then hits a blazing hot griddle to develop a caramelized crust.

Soft, sweet onions and gooey American cheese complete the Philly side, while gochujang mayo adds a Korean kick. Brioche rolls provide a buttery, tender home for all that goodness. Ready in under 30 minutes, this sub is perfect for a weeknight dinner or a game-day feast.

Ingredients

Why this recipe works

The key to this sub is the high-heat sear. A 480°F (250°C) flat top or cast-iron skillet caramelizes the sugars in the marinade, creating a deep, savory crust on the beef while keeping the interior juicy. This Maillard reaction is what gives the bulgogi its signature smoky flavor and satisfying texture.

American cheese is the classic Philly choice because it melts into a creamy, cohesive sauce that clings to every bite of beef.

Combined with the glossy gochujang mayo, it balances the spicy, sweet, and savory elements perfectly. The brioche roll is sturdy enough to hold the filling yet soft enough to soak up the juices without falling apart.

Notes and substitutions

Shaved ribeye is the traditional cut for cheesesteaks; ask your butcher to slice it paper-thin, or freeze a ribeye steak for 20 minutes and slice it yourself. If ribeye isn't available, sirloin or flank steak sliced thinly works well. The marinade is quick and uses pantry staples: soy sauce, sesame oil, brown sugar, garlic, and ginger.

For the gochujang mayo, use a good-quality mayonnaise and adjust the gochujang to your heat preference. Gochujang is a Korean chili paste that adds a fermented, slightly sweet heat; it's available in most supermarkets or online.

If you can't find it, sriracha or chili garlic sauce can substitute, though the flavor will be less complex.

• shaved ribeye: thinly sliced sirloin or flank steak
• brioche hoagie roll: soft sub roll or baguette
• white American cheese: provolone or mozzarella
• gochujang: sriracha or chili garlic sauce

Equipment

• Large bowl
• Flat top griddle or large cast-iron skillet
• Spatula
• Cutting board
• Chef's knife
• Small bowl for mayo