Express Tuna Gochujang Sandwich

It was 38 degrees outside. The kind of heat that makes cooking feel like a punishment.

I had a can of tuna, half a cucumber, and absolutely zero will to turn on the stove. I also had a box of gochujang sitting in the back of my fridge — the one I'd been using for jeyuk bokkeum, the one that makes everything it touches taste banging. And of course I had Kewpie mayo -a staple in this house.

I mixed them together, sliced the cucumber paper-thin, added a few drops of Maggi, and that was my lunch. Five minutes. Five ingredients. Done.

My sandwich savior. Not high cuisine no, definitely not pretending to be. But on a sweltering summer afternoon, this is exactly what the people need — and a slight upgrade on the basic tuna mayo.

Express Tuna Gochujang Sandwich – About the dish

The tuna sandwich is one of those things that exists in every culture, in some form. Universally humble, universally satisfying. What makes this one interesting isn't the format — it's the sauce.

Gochujang (고추장) is a fermented Korean chili paste made from glutinous rice, red chili powder, fermented soybeans, and salt. Unlike raw chili heat, gochujang brings something deeper: a slow, building warmth with a faint sweetness and umami backbone from the fermentation. It's what makes Korean food taste distinctly Korean — not just spicy, but complex.

Combined with a good mayonnaise — ideally Kewpie, which uses rice vinegar and egg yolks only (no whites), giving it a richer, tangier flavour than Western mayo — it becomes something that feels far more sophisticated than the two-second effort it takes to mix together. The cucumber adds the crunch and the cool. The Maggi (or fine salt) just sharpens everything.

This is the kind of sandwich you make when tomato-cucumber salads feel like a broken record. Same summer vibes, but with SPICE.

Express Tuna Gochujang Sandwich – Recipe

Ingredients – Advice & key points

• Tuna: Use tuna in water (or oil if you can spare the extra calories!), and don't drain it fully — a little of that liquid loosens the mix perfectly and keeps it moist. 200g is the sweet spot for 2 sandwiches.
• Mayonnaise: Kewpie is recommended here. It's richer, slightly tangier, and more flavourful than standard mayo. You'll find it at any Asian grocery or online. If you can't find it though, any full-fat mayo works.
• Gochujang: 2 teaspoons gives a noticeable but very chill heat. If you're heat-sensitive, start with 1 tsp and taste as you go. If you love fire, go up to 3. Every brand varies in spice level, so adjust accordingly.
• Cucumber: Slice it as thin as possible — this isn't a sandwich filler, it's a contrast element. Thin slices give you crunch without bulk, and they don't make your bread soggy.
• Maggi vs. salt: Maggi seasoning sauce adds a deeper umami hit than plain salt. If you have it, use it. If not, fine salt works fine.
• Bread: Standard sandwich bread works perfectly here. I prefer mine untoasted for this one -I love a soft, moist tuna sandwich- but up to you!

Assembly – Advice & key points

• Mix the tuna well: Make sure the gochujang and mayo are fully incorporated into the tuna — no orange pockets of unmixed paste. Taste and adjust before spreading.
• Cucumber goes on top: Spread the tuna mix first, then layer the cucumber slices on top. This way the cucumber stays crisp and doesn't make the bread soggy from the bottom.
• Add the Maggi/salt last: A few drops directly on the cucumber slices, right before closing the sandwich, gives you a final sharp savoury note that ties everything together.
• Eat it right away: This sandwich doesn't hold well. The cucumber releases water over time, which softens the bread. Make it, eat it. No meal prep here.

That's genuinely everything. No stove. No waiting. Just a bowl, a knife, and five minutes between you and something that tastes like it has no right to be this good.

Enjoy !