1/2red or white onionsmall (about 50 g / 1.8 oz), very thinly sliced
3tbspwhite wine vinegaror apple cider vinegar (45 ml)
2tbspneutral oilsuch as sunflower or canola (30 ml)
1tbspgranulated sugaror 2–3 tsp honey (12 g)
1/2tspfine sea saltfor the dressing (3 g), plus more for salting cucumbers
1/4tspfreshly ground black pepper
3tbspfresh dillfinely chopped (10 g)
2-3tbspcold wateroptional, to mellow dressing if it tastes too sharp (30–45 ml)
1tspsaltfor salting the cucumbers
Instructions
Slice the cucumbers very thinly (about 2–3 mm). Add to a colander set over the sink or a bowl and sprinkle with 1 tsp salt; toss gently to distribute.
Let the cucumbers drain for 15–20 minutes so they release water and stay crisp.
While cucumbers rest, slice the onion very thinly (rinse and pat dry if desired) and finely chop the dill.
Make the dressing: in a mixing bowl (or serving bowl), whisk together vinegar, oil, sugar, 1/2 tsp fine sea salt, and black pepper until the sugar is mostly dissolved. Taste; if too sharp, whisk in 2–3 tbsp cold water.
Gently squeeze small handfuls of cucumbers to remove excess liquid (not bone-dry, just not dripping).
Add drained cucumbers and sliced onion to the dressing. Add chopped dill and toss gently until evenly coated.
Taste and adjust: add a pinch more salt, a small splash of vinegar, or a bit more sugar if needed for balance.
Cover and chill at least 20–30 minutes to let flavors blend, then toss again before serving.
Serve chilled (a little liquid in the bowl is normal). Store covered in the refrigerator up to 2 days; stir and re-taste before serving leftovers.