This is a no-cook tomato and caper salad that comes together in 15 minutes with eight ingredients. The capers and vinaigrette are bold enough that it holds its flavor well after sitting, which makes it genuinely useful for meals where you want something ready ahead of time. Ripe tomatoes and good olive oil do most of the work.
Why this recipe works
Two things actually matter here. First, soaking the red onion in ice water for five minutes pulls out the harsh sulfur compounds that would otherwise dominate every bite — you keep the crunch and a mild sharpness without the raw-onion aftertaste. Second, rinsing and soaking the salted capers for ten minutes before adding them prevents the salt from overwhelming the tomatoes; skip that step and the whole salad tastes like brine. Everything else — the olive oil, vinegar, herbs — falls into place once those two prep steps are done correctly.
What can go wrong
- Watery dressing pooling at the bottom: This happens when tomatoes sit too long after being salted or dressed. If you’re making this ahead, store the dressed tomatoes in a shallow container rather than a deep bowl so liquid distributes evenly and doesn’t make the bottom layer soggy.
- Capers still too salty after soaking: Ten minutes is the minimum. If your capers are very heavily packed in salt, give them a full 20-minute soak and taste one before adding them. Different brands vary a lot in salt intensity.
- Herbs turning dark and limp: Basil bruises fast once torn. If you’re assembling this more than an hour before serving, keep the herbs separate and add them right before the salad hits the table — skip the garnish step early and you’ll have noticeably better-looking results.
- Tomatoes that taste flat: Cold kills tomato flavor. If your tomatoes came straight from the fridge, let them sit at room temperature for 20 to 30 minutes before chopping. This is the single biggest reason a tomato salad tastes dull.
- Vinaigrette that separates immediately: Whisk the olive oil and vinegar together in a small jar with the lid on, or whisk vigorously for at least 30 seconds. A loose, un-emulsified dressing coats unevenly and leaves some bites sharp and others bland.
Keeping and reheating
This salad keeps in an airtight container in the fridge for up to two days. The tomatoes will release more liquid as they sit, which actually deepens the flavor of the dressing — stir everything together before serving. Add fresh herbs only when you’re ready to eat, since refrigerated basil turns black quickly. This dish is not suitable for freezing. There is no reheating; serve it cold or at room temperature, and if it’s been in the fridge, pull it out 15 minutes before serving so the olive oil loosens back up.
Maltese Tomato and Caper Salad
Equipment
- Large mixing bowl
- Serrated knife
- Cutting board
- Small bowl or measuring jug (for vinaigrette)
- Salad tongs or serving spoons
Ingredients
- 4 cups heirloom tomatoes about 1.5 lbs / 680g, preferably ripe and in mixed colours, chopped into bite-sized chunks
- ¼ cup salted capers about 35g, rinsed and soaked for 10 minutes, then drained
- ¼ cup red onion about 40g, thinly sliced, soaked in ice water for 5 minutes to mellow
- 2 tablespoons extra virgin olive oil
- 1 tablespoon white wine vinegar or fresh lemon juice
- ¼ teaspoon kosher salt adjust to taste
- ¼ teaspoon black pepper freshly ground
- 2 tablespoons fresh flat-leaf parsley roughly chopped
- 6 fresh basil leaves torn
Instructions
- Place the chopped tomatoes in a large mixing bowl. (Tip: use a serrated knife when cutting the tomatoes to avoid crushing the flesh and losing juices.)4 cups heirloom tomatoes
- Add the soaked and drained capers, and the sliced red onion (after soaking them in ice water for a milder taste). Gently toss the tomatoes, capers, and onion together with your hands or salad tongs to combine without crushing the tomatoes.4 cups heirloom tomatoes, 1/4 cup salted capers, 1/4 cup red onion
- In a separate small bowl or measuring jug, whisk together the extra virgin olive oil, white wine vinegar, kosher salt, and black pepper until well combined — the mixture will separate quickly, which is normal. Whisk again just before pouring over the salad.2 tablespoons extra virgin olive oil, 1 tablespoon white wine vinegar, 1/4 teaspoon kosher salt, 1/4 teaspoon black pepper
- Pour the vinaigrette over the tomato mixture and gently toss to combine. Taste and adjust seasoning as needed.4 cups heirloom tomatoes, 1/4 cup salted capers, 1/4 cup red onion, 2 tablespoons extra virgin olive oil, 1 tablespoon white wine vinegar, 1/4 teaspoon kosher salt, 1/4 teaspoon black pepper
- Sprinkle over the chopped parsley and torn basil leaves just before serving for vibrancy and aroma.2 tablespoons fresh flat-leaf parsley, 6 fresh basil leaves
Notes
Nutrition
Frequently asked questions
Can I make this salad a few hours before guests arrive?
Yes — it actually tastes better after 30 to 60 minutes of resting. Dress the tomatoes, capers, and onion, cover the bowl, and refrigerate; just hold the fresh herbs and add them right before serving.
Can I use regular brined capers instead of salted ones?
Yes, brined capers work fine. They’re already milder than salt-packed ones, so a quick rinse is enough — no need for the 10-minute soak.
What tomatoes should I use if I can’t find heirloom varieties?
Any ripe, in-season tomato will do — roma, vine-ripened, or even cherry tomatoes halved. The key is ripeness, not variety; an underripe heirloom is worse than a ripe supermarket tomato.
Is there a substitute for white wine vinegar?
Fresh lemon juice is the closest swap and is already listed as an option in the recipe. Red wine vinegar also works but gives the dressing a slightly stronger, earthier edge.
How do I keep the tomatoes from making everything soupy?
Don’t salt the tomatoes separately before dressing them, and use a wide shallow bowl rather than a deep one. If there’s a lot of liquid after resting, tilt the bowl and spoon some off before serving — it’s flavorful, but too much makes the salad wet.
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