Dairy-Free Sour Cream (Easy Cashew Recipe)

The day I blended my first batch of cashew dairy-free sour cream, I stood at the counter tasting it off the spatula in disbelief, because it was every bit as tangy and luscious as the real thing. A good dollop of sour cream was the one thing I genuinely mourned when I cut out dairy, especially on tacos and baked potatoes. It turns out you only need a handful of cashews, a little lemon and vinegar for that signature tang, and a blender. Five minutes later you have a thick, creamy, spoonable sour cream that nobody can tell is plant-based. It’s become a staple in my fridge, and once you make it, I think it will in yours too.

By Brooks · Tested and updated May 31, 2026

What Is Dairy-Free Sour Cream?

Dairy-free sour cream is a creamy, tangy condiment made without any milk or dairy, most often from blended soaked cashews. The cashews create a rich, thick base, while lemon juice and apple cider vinegar add the cultured tang that makes sour cream taste like sour cream. A pinch of salt rounds it out. Smooth, spoonable, and ready in minutes, it’s a 1:1 replacement for dairy sour cream on tacos, baked potatoes, soups, and in baking, making it one of the most useful dairy-free staples to keep on hand.

Why You’ll Love This Recipe

• Tastes like the real thing. Rich, tangy, and thick — no one guesses it’s dairy-free.
• 5 minutes. Just soak, blend, and chill.
• Clean ingredients. No gums, oils, or additives.
• Versatile. A 1:1 swap for dairy sour cream anywhere.
• Naturally vegan and easily nut-free with a simple swap.

Ingredients

This makes about 1 1/2 cups (12 servings). Raw cashews are essential — roasted ones change the flavor and color.

• 1 cup raw cashews, soaked
• 1/4 to 1/3 cup water (plus more to thin)
• 1 tablespoon fresh lemon juice
• 1 teaspoon apple cider vinegar
• 1/4 teaspoon fine sea salt

If you love making your own creamy staples, you’ll also want my easy dairy-free cream cheese spreads on hand for bagels and dips.

How to Make Dairy-Free Sour Cream

Step 1: Soak the cashews

Soak the cashews in cool water for 4 hours, or cover with boiling water for a quick 15-minute soak, then drain. Tip: Soaking softens the cashews so they blend completely smooth; skip it and you’ll end up with a grainy, gritty texture.

Step 2: Add everything to a blender

Place the drained cashews, water, lemon juice, vinegar, and salt in a blender. Tip: Start with 1/4 cup of water; you can always add more to thin it, but you can’t easily take it back out once it’s too loose.

Step 3: Blend until silky

Blend on high for 1 to 2 minutes, scraping down as needed, until completely smooth and creamy. Tip: A high-speed blender gives the silkiest result; with a standard blender, soak the cashews longer and blend a little extra.

Step 4: Adjust the tang

Taste and add more lemon juice or vinegar for extra tang, or salt to balance. Tip: The flavor sharpens as it chills, so aim for slightly mild now and it will taste perfectly tangy after resting in the fridge.

Step 5: Chill to thicken

Transfer to a jar and refrigerate for at least 30 minutes. Tip: It thickens noticeably as it chills, so don’t worry if it looks a little thin straight from the blender — the fridge does the work.

Step 6: Serve

Dollop onto tacos, baked potatoes, chili, or soups. Tip: Give it a quick stir before serving, and thin with a teaspoon of water if you’d like a more drizzle-able consistency.

Expert Tips & Tricks

• Use raw cashews only; roasted or salted ones change the flavor and color.
• Quick-soak in boiling water for 15 minutes when you’re short on time.
• Blend longer than you think for that signature silky texture.
• Add a probiotic capsule and rest a few hours for a deeper, cultured tang.

Variations & Substitutions

• Nut-free: Use raw sunflower seeds or silken tofu in place of cashews.
• Extra tangy: Add an extra teaspoon of lemon juice or vinegar.
• Herbed: Blend in fresh chives and dill for a savory dip.
• Lighter: Use silken tofu for a lower-fat, protein-rich version.
• Pair it: Spoon it over my smoky dairy-free chicken fajitas for the perfect cool, tangy finish.

Storage & Reheating

• Refrigerator: Store airtight for up to 5 days; stir before each use.
• Freezer: Freeze for up to 2 months; re-blend after thawing to restore the texture.
• Thinning: Whisk in a teaspoon of water if it thickens too much in the fridge.
• Make-ahead: The flavor actually improves after a few hours, so it’s great to prep in advance.

Nutrition Information

Values are an estimate per 2-tablespoon serving, based on USDA FoodData Central reference data. Numbers vary with how much water you add.

Cashews bring healthy fats and a creamy base; this dairy-free substitutes guide has more on building creamy textures without any dairy.

Frequently Asked Questions

How do you make dairy-free sour cream without cashews?

Use raw sunflower seeds for a nut-free version, or blend silken tofu with lemon juice and vinegar for a lighter, protein-rich sour cream. Both give a similar creamy, tangy result.

Do I have to soak the cashews?

Yes, for a smooth texture. Soak them 4 hours in cool water, or cover with boiling water for a quick 15-minute soak. Skipping it leaves the sour cream grainy.

How long does dairy-free sour cream last?

It keeps for up to 5 days in an airtight container in the fridge. The tang deepens over the first day, and you can freeze it for up to 2 months, re-blending after thawing.

Can I use it for baking and cooking?

Yes. It’s a 1:1 swap for dairy sour cream in dips, dressings, baked goods, and creamy sauces. For hot dishes, stir it in at the end so it stays smooth.

Why is my sour cream grainy?

The cashews likely needed more soaking or more blending. Soak them longer, use a high-speed blender if you can, and blend a full 1 to 2 minutes for a perfectly silky result.

Stock your dairy-free fridge with more creamy basics like a dairy-free heavy cream substitute or a pot of dairy-free chicken curry to dollop it on.

Related Dairy-Free Recipes

• More Dairy-Free Substitutes
• Coffee Creamer
• Bechamel Sauce
• all our dairy-free recipes