What is the difference between butter and margarine?

The fundamental difference

• Butter is a dairy product made by churning cream until milk fat separates from the milk solids + buttermilk. ~80% milk fat + 16% water + 4% milk solids. From cows or other dairy animals.

• Margarine is a vegetable-based fat product made from vegetable oils + emulsifiers + flavorings + colorings. Originally invented as a butter substitute in 1869 by French chemist Hippolyte Mège-Mouriès.

Side-by-side comparison

Why butter often produces "better" bakes

Three reasons butter typically outperforms margarine in baking:

1. Milk solids — when heated, the proteins + lactose undergo Maillard reaction = golden color + nutty/buttery flavor compounds. Margarine has minimal milk solids (in some brands, none) → less browning + less complex flavor.

1. Water content — butter is ~16% water. When butter heats, water turns to steam → creates flaky layers in pastry. Margarine's water content + composition produces less dramatic flake.

1. Flavor compound — diacetyl is the main flavor in butter, present at 2-5 ppm. Most margarine has artificial diacetyl-like compounds added but lower concentration.

For cookies, cakes, pastries: butter usually wins on flavor + structure. For sandwich spread, sautéing, simple cooking: margarine works fine.

When to use each

Use BUTTER when: - Flaky pastry (croissants, pie crust) - Layered cake / sponge cakes - Buttercream frostings (richness) - Chocolate chip cookies (flavor + browning) - Sautéing vegetables / fish / meat - Browning butter for desserts - Anywhere flavor is the star

Use MARGARINE when: - Vegan / dairy-free required - Cost is a concern (~$2-4 vs $4-8/lb) - Larger-batch cooking (margarine's consistency easier to work with at scale) - Some traditional Eastern European recipes specify margarine - Long-storage emergency-fund baking

Vegan butter alternatives (better than traditional margarine):

• Miyoko's Cultured Vegan Butter (cashew + coconut base) — best for baking; closest to dairy butter performance
• Earth Balance (vegetable oil + emulsifiers) — affordable; works in most recipes
• Country Crock Plant Butter (oil-based) — neutral; standard substitute

Modern vegan butters perform much better than 1960s-era margarines.

Health considerations

• Saturated fat: butter higher (~7g per tbsp), margarine lower (~2-4g per tbsp). Health authorities recommend reducing saturated fat intake.
• Trans fats: older margarines had them; modern formulations eliminate them. Modern butter naturally has none.
• Cholesterol: butter has some (~30mg per tbsp); margarine has none.
• Cardiovascular: dietary guidelines suggest limiting saturated fat, BUT recent research has nuanced this — saturated fat from natural sources (dairy, meat) may not be as bad as previously thought. The science continues to evolve.

For most people: moderate butter intake is fine. Margarine for specific dietary restrictions.

Note on "Naturally Yellow" coloring

Butter's yellow color comes from beta-carotene in cow's diet (grass-fed cows produce yellower butter). Margarine is white when made; yellow color is added via beta-carotene, annatto, or other natural colorings — historically, this was banned to prevent confusion with butter.

Cross-reference: see /pages/what-substitute-for/butter + /pages/what-substitute-for/shortening (existing) + /pages/what-temperature-for/cookie-baking-temperature + /pages/how-long-does/butter-soften.