"The difference between cultured butter and regular butter is the difference between bread and toast.
"KaiRenner26th of April 2026
Why Cultured Butter Tastes Different
Culturing cream before churning introduces lactic acid bacteria that convert lactose into lactic acid and diacetyl — the compound responsible for the characteristic buttery, slightly tangy flavor in European-style butter. Most American commercial butter skips this step entirely. Culturing at room temperature for 12 to 24 hours is all it takes to transform the flavor profile dramatically.
12to 24 Hours
35Percent
Culture the Cream
Mix cream with crème fraîche or buttermilk and leave at room temperature.
Culture the Cream
Combine 1 quart of heavy cream (minimum 35% butterfat) with 2 tablespoons of crème fraîche or full-fat cultured buttermilk. Stir to combine and cover loosely. Leave at 65 to 72°F for 12 to 24 hours. The cream will thicken slightly and develop a clean, tangy aroma. Taste it — it should be pleasantly sour, not sharp or off.
Churn the Cream
Beat chilled cultured cream in a stand mixer or food processor until butter separates.
Churn the Cream
Refrigerate the cultured cream for at least 1 hour before churning. Transfer to a stand mixer with the whisk attachment. Beat at medium-high speed. It will pass through whipped cream stage and then, typically after 5 to 8 minutes, break into solid butter and buttermilk. You will hear the change — a splashing sound as the liquids separate.
Wash the Butter
Rinse under cold water while kneading out all residual buttermilk.
Wash the Butter
Pour off the buttermilk (save it for baking). Add a cup of ice water to the butter in the bowl and work it with a spatula or your hands until the water runs clear. Repeat 3 to 4 times. Residual buttermilk causes butter to spoil quickly — thorough washing is what gives it shelf life.
Season and Pack
Add salt if desired, then pack into ramekins or molds.
Season and Pack
For salted butter, add 1/4 teaspoon fine sea salt per 4 oz of butter and work in thoroughly. Pack into ramekins, roll in parchment, or press into a butter mold. Refrigerate for immediate use or freeze for up to 3 months. Cultured butter keeps 2 to 3 weeks refrigerated if well washed.
What You Need
1 quart heavy cream — minimum 35% butterfat
2 tbsp crème fraîche or full-fat cultured buttermilk
Stand mixer, food processor, or jar for churning
Large bowl of ice water for washing
Fine sea salt (optional)
Parchment paper or ramekins for storing
Fat Content Is Not Negotiable Cream below 35% butterfat will not churn into butter — it lacks the fat globules needed to coalesce. Ultra-pasteurized cream works but produces a flatter flavor than pasteurized. Avoid any cream labeled "ultra-high temperature" if you can. Farm-fresh or non-UHT pasteurized cream makes the biggest difference in final flavor.
"Cultured butter on good bread needs nothing else. That is the whole point.
"KaiRenner26th of April 2026