Cream churned until fat separates from liquid — roughly 80% fat, plus water and milk solids. Those milk solids are why butter browns, burns, and tastes the way it does.
On the palate
Flavor
Sweet cream, faintly tangy if cultured. Browned, it becomes nutty and toasty (beurre noisette). Salted versions vary wildly in salt content between brands.
Handle with care
Prep & knife work
·
Cube and chill for pastry — cold butter makes flaky layers.
·
Soften to room temperature for creaming into cakes.
·
Clarify (melt and skim) for high-heat cooking.
At the stove
Cooking methods
Mounting sauces (whisk in cold cubes off heat)
Browning for beurre noisette
Basting steaks and fish
Laminating pastry
Flavor friends
Pairs well with
Flour
Herbs
Honey
Bread
Out of it?
Substitutions
Olive oil (sauté)
Coconut oil (baking, 1:1)
Ghee (high heat)
Applesauce (half the butter in muffins/quick breads)
Keep it fresh
Storage & shopping
Storage
Refrigerate wrapped — butter absorbs fridge odors eagerly. A butter dish at room temperature is fine for a few days if your kitchen is cool.
Shelf life
Fridge: 1–3 months. Freezer: up to a year, tightly wrapped.
Seasonality
Year-round; spring butter from grass-fed cows is deeper yellow and richer.
Shopping tips
European-style (82%+ fat) makes noticeably better pastry. For cooking, unsalted gives you control of seasoning.
Nutrition
About 100 kcal per tablespoon, mostly saturated fat, with vitamins A, D, E and K2.
A longer story
History
Made for at least 4,000 years, from Mongolian yak butter to Norman beurre d'Isigny. French cuisine is essentially a monument to it.