Tzatziki is one of those sauces that makes everything taste fresher and brighter. This keto-friendly version keeps all the zesty, garlicky goodness while staying low in carbs and high in flavor. It’s perfect for dipping, drizzling, and spreading on just about anything.
You’ll only need a handful of simple ingredients and a few quick steps. Make it once, and it’ll become a go-to in your weekly meal prep.
Ingredients
Method
- Prep the cucumber. Peel the cucumber if the skin is thick or waxy. Grate it on the large holes of a box grater. Sprinkle with a pinch of salt and let it sit in a fine-mesh sieve for 10 minutes.
- Squeeze out the water. Wrap the grated cucumber in a clean kitchen towel or several paper towels. Squeeze hard to remove as much moisture as possible. The drier it is, the thicker your tzatziki will be.
- Mince the garlic. Finely mince the garlic or grate it on a microplane for a smoother texture. If you prefer a mild garlic flavor, start with half a clove and add more to taste.
- Chop the herbs. Finely chop fresh dill. If using mint, chop a small amount as well. Fresh herbs make a big difference here.
- Combine the base. In a bowl, add the Greek yogurt, drained cucumber, garlic, dill, and 1 tablespoon of olive oil. Stir until well combined.
- Add lemon and seasoning. Zest half the lemon directly into the bowl, then add 1 to 2 teaspoons of lemon juice. Season with salt and black pepper. Mix and taste.
- Adjust to preference. Add more lemon for brightness, more dill for herbiness, or another drizzle of olive oil for richness. If you like a tangier sauce, add a splash (1 teaspoon) of red or white wine vinegar.
- Chill briefly. Cover and refrigerate for at least 20 to 30 minutes to let the flavors meld. It thickens as it chills.
- Serve. Drizzle with a little olive oil before serving. Enjoy with grilled chicken, lamb, salmon, low-carb pita, or crisp cucumber and bell pepper strips.
What Makes This Special
This Keto Tzatziki keeps things authentic while respecting your macros. Instead of sugary or starchy thickeners, it relies on full-fat Greek yogurt and properly drained cucumber for a thick, creamy texture.
Fresh lemon, garlic, and dill bring a clean, bright flavor that pairs beautifully with grilled meats and crisp vegetables. It’s quick to make, easy to customize, and tastes even better after a short chill in the fridge.
Shopping List
- Full-fat Greek yogurt (unsweetened) – about 1 1/2 cups
- Cucumber – 1 medium English cucumber or 2 Persian cucumbers
- Fresh garlic – 1 to 2 cloves, to taste
- Fresh dill – a small handful, finely chopped (or 1 to 2 teaspoons dried)
- Lemon – 1, for zest and juice
- Extra-virgin olive oil – 1 to 2 tablespoons
- Sea salt – to taste
- Black pepper – to taste
- Optional extras: fresh mint, red wine vinegar, white wine vinegar, or a pinch of smoked paprika
Step-by-Step Instructions
- Prep the cucumber. Peel the cucumber if the skin is thick or waxy. Grate it on the large holes of a box grater.
Sprinkle with a pinch of salt and let it sit in a fine-mesh sieve for 10 minutes.
- Squeeze out the water. Wrap the grated cucumber in a clean kitchen towel or several paper towels. Squeeze hard to remove as much moisture as possible. The drier it is, the thicker your tzatziki will be.
- Mince the garlic. Finely mince the garlic or grate it on a microplane for a smoother texture.
If you prefer a mild garlic flavor, start with half a clove and add more to taste.
- Chop the herbs. Finely chop fresh dill. If using mint, chop a small amount as well. Fresh herbs make a big difference here.
- Combine the base. In a bowl, add the Greek yogurt, drained cucumber, garlic, dill, and 1 tablespoon of olive oil.
Stir until well combined.
- Add lemon and seasoning. Zest half the lemon directly into the bowl, then add 1 to 2 teaspoons of lemon juice. Season with salt and black pepper. Mix and taste.
- Adjust to preference. Add more lemon for brightness, more dill for herbiness, or another drizzle of olive oil for richness.
If you like a tangier sauce, add a splash (1 teaspoon) of red or white wine vinegar.
- Chill briefly. Cover and refrigerate for at least 20 to 30 minutes to let the flavors meld. It thickens as it chills.
- Serve. Drizzle with a little olive oil before serving. Enjoy with grilled chicken, lamb, salmon, low-carb pita, or crisp cucumber and bell pepper strips.
How to Store
Store Keto Tzatziki in an airtight container in the fridge for up to 4 days.
Stir before serving, as a little separation is normal. For the best texture, keep it cold and avoid double-dipping. Freezing isn’t recommended, since yogurt can split and become grainy when thawed.
Why This is Good for You
- Low in carbs, high in satisfaction: Full-fat Greek yogurt keeps you fuller longer without spiking carbs.
- Protein and healthy fats: Greek yogurt offers protein, and olive oil adds heart-healthy monounsaturated fats.
- Micronutrient boost: Cucumber hydrates, while lemon and herbs bring antioxidants and freshness.
- Gut-friendly: Live cultures in yogurt can support a healthy digestive system.
What Not to Do
- Don’t skip draining the cucumber: Excess water makes the sauce thin and watery.
- Don’t use low-fat or sweetened yogurt: It won’t be as creamy and may add unwanted sugars.
- Don’t overdo the garlic: Raw garlic is potent.
Add a little, taste, and build from there.
- Don’t skip the chill time: Even 20 minutes helps the flavors settle and the sauce thicken.
- Don’t rely only on juice: Lemon zest adds fragrant oils without extra liquid—use both for balanced flavor.
Recipe Variations
- Minty Tzatziki: Add 1 to 2 tablespoons of finely chopped fresh mint along with dill for a cooling twist.
- Extra-Creamy: Stir in 2 tablespoons of sour cream or mascarpone for an ultra-smooth, richer dip.
- Dairy-Free: Use an unsweetened, thick coconut yogurt. Add a little extra lemon and dill to balance the coconut notes.
- Spicy Kick: Mix in a pinch of red pepper flakes or finely minced jalapeño. A dusting of smoked paprika on top also works well.
- Herb Garden: Add parsley, chives, or a touch of oregano if you want a broader herbal profile.
- Roasted Garlic: Swap raw garlic for 1 to 2 teaspoons of mashed roasted garlic for a sweet, mellow flavor.
FAQ
Is tzatziki keto?
Yes, when made with full-fat, unsweetened Greek yogurt and no added sugars, tzatziki is naturally low in carbs and fits well in a keto plan.
Can I use regular yogurt instead of Greek yogurt?
You can, but Greek yogurt is thicker and creamier, which gives the best tzatziki texture.
If using regular yogurt, strain it through a cheesecloth for a couple of hours to remove excess whey.
How do I fix watery tzatziki?
Add more thick Greek yogurt and thoroughly drain the cucumber next time. You can also stir in a spoonful of sour cream to thicken it quickly.
What can I serve this with on keto?
Try grilled chicken thighs, lamb skewers, bunless burgers, salmon, roasted vegetables, or low-carb pita and veggie sticks. It also makes a great dressing for salads when thinned with a splash of water or olive oil.
Can I make it ahead?
Absolutely.
Tzatziki tastes better after resting for 20 to 30 minutes. Make it up to a day ahead for peak flavor, and stir before serving.
How much lemon should I use?
Start with zest from half a lemon and 1 to 2 teaspoons of juice. Taste and adjust.
The zest adds bright flavor without watering down the sauce.
Can I use dried dill?
Yes. Use 1 to 2 teaspoons dried dill if you don’t have fresh. Let the sauce sit a bit longer so the dried herbs can hydrate and bloom.
In Conclusion
Keto Tzatziki is simple, fresh, and endlessly useful.
With just a few real-food ingredients, you get a tangy, creamy sauce that upgrades any meal. Keep a batch in the fridge, and you’ll always have a tasty, low-carb way to add flavor to your plate. Once you nail the basics, tweak it to your taste and make it your own.
Printable Recipe Card
Want just the essential recipe details without scrolling through the article? Get our printable recipe card with just the ingredients and instructions.