Cucumber Salad

Crisp cucumbers, red onion, and fresh herbs are tossed in a tangy, mustard-infused vinaigrette for a refreshing and vibrant salad. Perfect as a light side dish for summer meals.

12 ingredients
5 steps
Added Oct 8, 2025

Ingredients

  • 1 red onion, halved lengthwise, thinly sliced (small)
  • 2 pound Persian
  • 2 1/4 teaspoon (or more) kosher salt, divided
  • 2 tablespoon extra-virgin olive oil
  • 1 tablespoon apple cider vinegar
  • 1 tablespoon fresh lemon juice
  • 1 tablespoon whole-grain mustard
  • 1 teaspoon honey
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon crushed red pepper flakes (optional)
  • 1/3 c. chopped fresh dill
  • 1/4 c. thinly sliced chives

Instructions

  1. 1

    Place onions in a small bowl of ice water; let soak 15 minutes.

  2. 2

    Meanwhile, place cucumbers in a salad spinner or colander set over a bowl, then toss with 2 teaspoons salt. Let sit, tossing occasionally, until cucumbers release their water, about 15 minutes.

  3. 3

    In a small bowl, mix oil, vinegar, lemon juice, mustard, honey, black pepper, red pepper (if using), and 1/4 teaspoon salt.

  4. 4

    Remove excess water from cucumbers with salad spinner or by blotting with paper towels, then transfer to a large bowl. Drain onions and add to bowl, along with dressing, dill, and chives. Toss well to combine. Let sit until salad absorbs some of the dressing, about 15 minutes; season with more salt, if needed.

  5. 5

    Make Ahead: Salad can be assembled 2 days ahead. Store in an airtight container and refrigerate. Serve cold.