Cultured Butter

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There’s a reason cultured butter tastes different from the block in the grocery store. Real cultured butter starts with cream that has been allowed to ferment with live cultures for 24 to 48 hours before it ever hits the mixer. That fermentation develops a subtle tanginess and a depth of flavor that you can taste in every bite. Spread it on warm bread and it tastes like something from a fancy restaurant. Use it in baking and everything you make is noticeably better. This is the kind of recipe that connects you to the way food used to be made before everything got processed and packaged and stripped of what makes it good.

It takes almost no active effort. Most of the time is just the cream sitting on your counter doing its thing while you go about your day.

Why You’ll Love This Recipe

• The culturing process does almost all the work on its own. You stir two ingredients together and walk away for up to two days. The rest takes about 20 minutes of actual hands-on time.
• The flavor of cultured butter is genuinely in a different category from standard store-bought butter. The fermentation adds a complexity and a subtle tang that makes everything it touches taste better.
• You get two products from one batch. The butter and a jar of probiotic-rich cultured buttermilk that is genuinely useful for baking.
• This is the kind of foundational homestead skill that once you learn it you’ll want to make it on repeat.

Ingredients Needed to Make Cultured Butter

• High-quality heavy cream: the base of everything. It must be pasteurized but not ultra-pasteurized and should have no stabilizers or additives on the label. The quality of the cream is directly reflected in the flavor of the finished butter so this is not the place to cut corners.
• Plain yogurt with live cultures or cultured buttermilk: the starter that introduces beneficial bacteria to the cream and begins the fermentation process. Any plain unsweetened yogurt with live active cultures works. The cultures are what transform the cream from plain heavy cream into something tangy, complex, and alive.
• Salt (optional): added at the very end if you want salted butter. Use a good quality flaky sea salt for the best result.

How to Make Cultured Butter

Step 1: Culture the Cream

Stir the yogurt into the cream in a clean jar or bowl until fully combined. Cover loosely and leave at room temperature for 24 to 48 hours. It should thicken slightly and develop a pleasant tangy smell. Refrigerate if you’re not ready to churn yet.

Step 2: Churn

Pour the cultured cream into a stand mixer or food processor. Start on low and increase to medium. Watch it move through whipped cream and keep going until you hear and see the butter suddenly separate from the buttermilk. Stop immediately.

Step 3: Strain

Line a strainer with cheesecloth and set over a bowl. Pour in the butter and buttermilk and let the liquid drain completely. Don’t discard the buttermilk.

Step 4: Ice Water Wash

Transfer the butter to a bowl of ice cold water. Knead and squeeze gently until the water turns cloudy. Drain and repeat with fresh water until it stays mostly clear.

Step 5: Finish and Store

Squeeze out any remaining water. Add salt if using. Shape or store in a jar.

Storing

Refrigerator: up to 1 to 2 weeks in a sealed container. Freezer: several months wrapped tightly. The cultured buttermilk keeps in a sealed jar in the refrigerator for up to 2 weeks and can be used anywhere regular buttermilk is called for.

How to Use Cultured Butter

Spread on warm homemade bread straight from the oven for the purest way to taste what you just made. Use it to finish sauces, sauté vegetables, or anywhere butter is the star of the dish. The cultured buttermilk that drains off during straining is rich in probiotics and produces exceptional pancakes, biscuits, quick breads, and any recipe that calls for buttermilk.

What People Ask About Cultured Butter

Why can’t I use ultra-pasteurized cream?

Ultra-pasteurization uses significantly higher heat than standard pasteurization and damages the protein and fat structure of the cream in a way that interferes with both fermentation and churning. The live cultures in the yogurt need an intact cream structure to do their work properly. Ultra-pasteurized cream often won’t culture correctly and can produce an inferior or failed batch. Always check the label and choose cream that says pasteurized only with a short, clean ingredient list.

How do I know when the cream is done culturing?

It should be slightly thicker than fresh cream, similar in texture to a loose crème fraîche, and smell pleasantly tangy like sour cream or yogurt. It shouldn’t smell off or unpleasant. If your kitchen is warm it may be ready closer to 24 hours. A cooler kitchen may take the full 48. Taste a small spoonful. If it’s noticeably tangy it’s ready to churn.

What if my butter doesn’t separate during churning?

Keep going. The separation happens suddenly and can take anywhere from 3 to 10 minutes depending on the fat content of the cream and the temperature it went into the mixer. If the cream is too cold it can take longer. Room temperature cultured cream that has been refrigerated before churning should be allowed to warm slightly before churning for the best result.

Why does the ice water wash matter so much?

Any buttermilk left in the butter will cause it to sour and go rancid significantly faster than properly washed butter. The ice water wash kneads out the trapped buttermilk from the fat, extending the shelf life of your finished butter from just a few days to 1 to 2 weeks in the refrigerator. It’s a five-minute step that makes a meaningful difference in how long your butter stays fresh.

Can I flavor the butter?

Yes. After the ice water wash and before storing is the perfect time to work in any additions. Roasted garlic and fresh herbs make an incredible compound butter. Honey and cinnamon make a sweet spread. Lemon zest and fresh thyme are excellent alongside fish and vegetables. Shape flavored butter into a log, wrap tightly in parchment, and refrigerate until firm.

Cultured Butter

This homemade cultured butter ferments heavy cream with live culture yogurt for 24 to 48 hours then churns into rich tangy butter with a depth of flavor that store-bought butter simply cannot match.

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Culturing 1 day d

Servings: 1 cup of butter

Course: Side Dish

Cuisine: American

Ingredients Method Notes

Ingredients

  

• 1 quart high-quality heavy cream, not ultra-pasteurized and no stabilizers 4 cups
• 3 tbsp plain unsweetened yogurt with live cultures or cultured buttermilk

Method

 

1. Pour the cream into a clean jar or bowl. Stir in the yogurt until fully combined. Cover loosely with a lid set on top or a cloth secured with a rubber band. Let sit on the counter for 24 to 48 hours until slightly thickened and pleasantly tangy. Refrigerate if you’re not ready to churn right away.
2. Pour the cultured cream into a stand mixer bowl or food processor. Start on low then increase to medium speed. It will become whipped cream first. Keep going. After a few minutes the butter will suddenly separate from the buttermilk. You’ll hear the change — that’s your cue to stop.
3. Line a strainer with cheesecloth and set over a bowl. Pour in the butter and buttermilk and let the liquid drain off completely. Save the cultured buttermilk for baking.
4. Transfer the butter to a bowl of ice cold water. Using your hands or a spatula gently knead and squeeze the butter until the water turns cloudy. Drain and repeat with fresh ice water until the water stays mostly clear. This removes trapped buttermilk and extends the shelf life of the finished butter.
5. Squeeze out any excess water. Add salt if desired. Shape into a log, press into a jar, or store however you like.

Notes

• Don’t use ultra-pasteurized cream. The high heat used in ultra-pasteurization damages the proteins and fat structure in the cream in a way that interferes with both the culturing process and the final texture of the butter. Look for cream labeled simply “pasteurized” with no stabilizers or additives on the ingredient list.
• The 24 to 48 hour window is flexible. A warmer kitchen cultures faster. A cooler one takes longer. Taste and smell are your guides, not the clock. You’re looking for a pleasant tang, similar to sour cream or crème fraîche.
• Don’t skip the ice water wash. Any buttermilk left in the butter will cause it to go rancid faster. Washing it out properly is what gives your homemade butter a shelf life of 1 to 2 weeks in the refrigerator rather than just a few days.
• Save every drop of the cultured buttermilk that drains off. It’s tangy, probiotic-rich, and makes the most incredible pancakes, biscuits, and quick breads you’ve ever tasted.