Butter or Oil in Baking: Which is Better?

You may want to switch things up in your baking—not always following the original recipe. Maybe you just have extra butter or oil in your kitchen. But choosing between the two is not random. It’s actually a chemical reaction that makes a big difference in your baked goods.

Butter vs. Oil in Baking

Butter is a saturated fat, which is why it’s solid at room temperature.
Most cooking oils (like canola, olive, peanut, soybean, sunflower, safflower) are unsaturated fats, which stay liquid at room temperature.

Because butter is solid, it’s perfect for recipes that require creaming butter and sugar together—a step that adds air into batter to create a light and fluffy texture. This can’t be achieved the same way with liquid oils.

But here’s the surprise: the final result can differ more in texture and flavor than you might expect.

Coconut Oil vs. Butter

Coconut oil is one of the rare oils that remain solid at room temperature (like palm oil and cocoa butter).
It melts at around 22°C (72°F), while butter melts closer to body temperature (30–35°C).

If you plan to refrigerate or serve baked goods cold, oil-based recipes may be better since butter or coconut oil can harden and taste greasy when chilled.

At room temperature, however, butter melts smoothly in the mouth and gives a stronger, richer flavor.

Margarine vs. Butter

Margarine is also a solid fat (saturated) but contains no water, unlike butter (which has ~20% water).
European butters are richer, with 82–85% fat compared to ~80% in standard butter.

Butter vs. Oil in Brownies

Oil brownies → chewier, crispier edges, shinier tops, with a more dense bite.
Butter brownies → softer, melt-in-your-mouth texture, more crinkly top, and better flavor.

👉 The best option? A mix of both: oil for chewiness + butter for flavor.

Butter vs. Oil in Cupcakes

Oil cupcakes → spongy, coarse crumb, less delicate.
Butter cupcakes → tender, airy, melt-in-your-mouth, with a richer flavor that enhances vanilla.

Which is Better Overall?

Butter usually wins for flavor.
Oil works better in recipes with strong competing flavors (chocolate, coffee, citrus), where butter might overwhelm.
That’s why recipes like chocolate cupcakes often use oil instead of butter.

How to Substitute Oil for Butter

Butter = 80% fat + 20% water/solids.
Oil = 100% fat.
👉 When replacing butter with oil, reduce the oil by about 15% and add 1–2 tablespoons of water per stick of butter (113g) to balance moisture.

Salted vs. Unsalted Butter

Always use unsalted butter for baking, so you can control the exact amount of salt in your recipe.

✨ Final Takeaway:

Use butter for flavor, richness, and tenderness.
Use oil for moisture, chewiness, and when working with bold flavors.
Sometimes, the best results come from combining both!