Marinated Castelvetrano Olives

If you are a dirty martini lover or an olive person, these marinated Castelvetrano olives are about to speak your love language. They are buttery, garlicky, a little spicy, and bright with fresh lemon zest. They taste like something you would order at your favorite date night spot for twelve dollars a bowl.

They take ten minutes. No cooking. No chopping anything but a couple cloves of garlic.

I started making these because I kept buying the expensive marinated olives at the specialty grocery store, and one day I stood there reading the label and realized I already had every single ingredient at home. That is usually how the best recipes happen around here.

Now they are my go-to when someone texts that they are stopping by. I pull a jar of olives from the pantry, toss them in a bowl with good olive oil and lemon, and suddenly it looks like I planned something.

Why you will love this recipe

• Ten minutes, start to finish. No stove, no oven, no special equipment.
• Seven ingredients and most of them are already in your kitchen.
• It gets better overnight, so you can make it a full day ahead of a party.
• It makes a bowl of olives feel like a moment. That is the whole goal of everyday hospitality.

What are Castelvetrano olives?

Castelvetrano olives are bright green Sicilian olives with a buttery, mild, almost sweet flavor. They are meatier and much less briny than a Kalamata, which is exactly why they work so well here. If you have a friend who swears they hate olives, these are the ones that change their mind.

You will find them at the olive bar, in jars near the pickles, or in the refrigerated deli section. Any brand works. Buy them whole with the pits in if you can, because the texture holds up better in the marinade.

Ingredients you will need

• Castelvetrano olives — one jar, drained. Pitted or with pits, both work.
• Good olive oil — this is a no-cook recipe, so the oil is a main flavor. Use the bottle you actually like.
• Red wine vinegar — cuts the richness and keeps everything tasting fresh.
• Fresh garlic, minced — please use fresh here, not the jarred kind. It is worth the thirty seconds.
• Lemon zest — the brightness that makes people ask what is in these.
• Crushed red pepper — start with less if you are heat shy.
• Flaky sea salt — just a pinch, since the olives are already salty.

How to make marinated Castelvetrano olives

1. Drain the olives and add them to a mixing bowl. Leave them whole, or gently smash them with the back of a spoon so they soak up more marinade.
2. Whisk the marinade in a separate small bowl: olive oil, red wine vinegar, minced garlic, lemon zest, crushed red pepper and flaky salt.
3. Pour it over the olives and toss until every one is coated in that garlicky, citrusy mixture.
4. Taste one. Add more lemon zest, red pepper or salt if you want it louder.
5. Serve right away for bright, fresh flavor, or cover and refrigerate overnight for something deeper and more intense.

The full printable recipe with measurements is in the recipe card below.

Tips for the best marinated olives

• Smash a few olives, not all of them. You get the deeper flavor of smashed olives and the pretty look of whole ones in the same bowl.
• Let them come to room temperature before serving. Cold olive oil goes cloudy and thick, and you lose a lot of the flavor. Twenty minutes on the counter fixes it.
• Warm them for something special. Gently heat the olives and marinade in a small skillet over low heat for three or four minutes. It makes the whole kitchen smell like an Italian restaurant.
• Zest the lemon before you juice it. Learn from my mistakes.
• Do not skip the flaky salt on top. Add a final pinch right before serving for that little crunch.

How to serve them

• Add them to a charcuterie board for an instant upgrade
• Serve alongside a chilled dirty martini or a crisp glass of white wine, like my 3-ingredient limoncello spritz
• Pair with crusty bread for dipping into the leftover marinade
• Keep them in the fridge for a snack that feels gourmet on a Tuesday
• Set them out next to a warm dip like my crispy baked Boursin cheese dip or honey almond baked brie dip

Make ahead and storage

Make ahead: These are genuinely better on day two. Make them up to 24 hours before your party and keep them covered in the refrigerator.

Storage: Store in an airtight container or a jar in the fridge for up to one week. The garlic gets stronger each day, which I consider a feature.

Do not waste the marinade. When the olives are gone, use the leftover oil to dress a salad, drizzle over roasted vegetables, or soak up with bread. It is too good to pour down the drain.

Freezing: Skip it. The texture of the olives does not hold up.

Frequently asked questions

Can I use a different kind of olive?
Yes. Castelvetranos are the star because they are buttery and mild, but this marinade is beautiful on a mix of green and Kalamata olives too. If you use brinier olives, cut back on the flaky salt.

How long do marinated olives need to sit?
You can eat them immediately. For the fullest flavor, give them at least four hours in the fridge, or overnight if you can wait.

Are Castelvetrano olives spicy?
Not at all on their own, they are mild and buttery. The heat in this recipe comes from the crushed red pepper, so you control it completely.

Can I make these without garlic?
You can, but garlic is doing a lot of the work here. If raw garlic is too sharp for you, use one clove instead of two, or smash it whole and let it infuse the oil, then fish it out before serving.

What do I do with the leftover marinade?
Use it as salad dressing, brush it on grilled bread, or toss it with warm pasta. It is one of the best parts of this recipe.

More easy appetizers to make next

• Cherry Pistachio Boursin Dip
• My Famous Deviled Eggs
• Garlicky Homemade Hummus
• 3 Ingredient Chipotle Onion Dip
• Strawberry Balsamic Bites

These marinated Castelvetrano olives bring a little bit of luxury to even the simplest night at home. If you make them, tag me so I can see your happy hour moment.

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