Marinated cucumber for hot days
Okay. Spinach is done, the potatoes and eggs are done, and now the last one — the cucumber. This is the banchan I make the most in summer, no contest. It's fast, it's cold, and it cuts through the bulgogi and rice so your whole mouth doesn't just get one flavor the entire meal.
Here's the thing — people think of cucumber as a garnish, not a dish. In Korean food it's a real side. Salted, drained, seasoned, done in twenty minutes with maybe five minutes of actual work. If you've made it through the spinach lesson you already know this rhythm: prep, salt or blanch, dress, taste, adjust.
What you need
- 2 English cucumbers (or 3-4 Persian cucumbers — either works fine, skip the waxy grocery-store slicing cucumbers if you can, they're mostly water and the skin's tough)
- 1 tablespoon kosher salt
- 2 tablespoons rice vinegar
- 1 tablespoon soy sauce
- 1-2 teaspoons sugar, to taste
- 1 teaspoon sesame oil
- 1 teaspoon gochugaru (Korean chili flakes) — leave out if you're serving kids who don't do spice, it's still good without it
- 1 clove garlic, minced
- 1 green onion, sliced thin
- Sesame seeds for the top
Write this down, because the ratio matters more than the exact vinegar or soy sauce you use: it's roughly 2 parts vinegar to 1 part soy sauce to 1 part sugar, then everything else is to taste.
Steps
1. Slice the cucumbers thin. Half-moons or full rounds, about an eighth of an inch. A mandoline makes this fast if you have one — watch your fingers, use the guard, I mean that plainly, not as a scare tactic. If you're using a knife, go slow and keep your fingertips curled under. This isn't hard, it's just a knife, and you don't need to rush it.
2. Salt them and let them sit. Toss the slices with the tablespoon of salt in a colander or bowl. Let them sit 15-20 minutes. This pulls water out of the cucumber, which matters — if you skip this step your banchan turns into a watery, diluted mess sitting in a puddle on the plate. Don't skip it.
3. Squeeze them out. After they've sat, take handfuls and squeeze gently over the sink. You'll be surprised how much water comes out. Don't be shy about it, just don't crush them to mush either.
4. Mix your dressing. Vinegar, soy sauce, sugar, sesame oil, gochugaru, garlic, in a bowl big enough to hold all the cucumber. Taste it before you add the cucumber — it should taste a little too strong on its own, because the cucumber mellows it out.
5. Toss and taste. Add the cucumber to the dressing, toss, taste, adjust. More sugar if it's too sharp, more vinegar if it's flat, more gochugaru if you want heat. This is the step where you actually make the dish yours.
6. Top with green onion and sesame seeds, serve cold. This one's actually better a little chilled, so if you have twenty minutes, let it sit in the fridge before it hits the table.
That's it. That's the whole dish.
A word on why I make this so much
This is the opinion I'll die on with banchan: you don't need eight side dishes to have a real Korean meal. Two good ones and rice is enough. In summer, this cucumber and the soy-braised potatoes from last lesson, plus rice and whatever protein you're doing, is a full dinner. Nobody at my table has ever asked where the rest of the spread went.
I think about this every time I think about my friend Melissa. She spent months telling me she couldn't make Korean food because she "didn't have the ingredients," like there was some invisible pantry requirement she'd never clear. So one Saturday I made her a list — gochugaru, sesame oil, rice vinegar, the basics — and drove her to Costco and then out to the Korean grocery up in Salt Lake to fill in the gaps. Twenty minutes in the car, maybe forty in the stores. That was the whole barrier. She makes bulgogi tacos now, which, I'll be honest, isn't how I'd serve it, but she cooks Korean food at home three times a month and that's the actual goal. Not gatekeeping. Getting food on the table.
Cucumber banchan is the same story in miniature. People assume it needs something exotic. It needs a cucumber, vinegar, and twenty minutes.
A few things that trip people up
- Salting is not optional if you want it to keep. This will hold in the fridge 3-4 days if you salt and drain properly. Skip that step and it gets soggy by tomorrow.
- Persian or English cucumbers matter more than the brand of soy sauce. Get the right cucumber before you worry about anything else on this list.
- Don't dress it too far ahead of serving if you're making it for a crowd — the salt in the dressing will keep pulling water even after you've drained it once. Dress it within an hour or two of eating for the best crunch.
Before next time
Try it this week with whatever protein you've got planned, even if it's not bulgogi — it holds its own next to a lot of things. Next lesson we put the whole spread together: rice, bulgogi, banchan, one table, and I'll tell you how I finally got that meal to look the way it did at my mom's house.