Olive Oil vs. Butter in Baking: Which Should You Use?

Quick answer

For moist, tender baked goods with a fruity flavor, use extra virgin olive oil. Butter gives a richer, flakier texture and classic taste. Substitute 3 parts olive oil for 4 parts butter by volume, and choose based on the flavor you want to highlight.

When a cake recipe calls for butter, swapping in olive oil can feel like a bold move. But bakers have been doing it for centuries, and the results can be excellent. The key is understanding how each fat behaves in the oven and what you want the final texture and flavor to be.

Butter is about 80% fat and 15% water, which creates steam and helps baked goods rise and become flaky. Olive oil is 100% fat, so it coats flour proteins more thoroughly, resulting in a moister, more tender crumb. That difference is why olive oil cakes are famously dense and rich, while butter-based pastries are light and airy.

Flavor: The biggest difference

Butter brings a creamy, dairy-forward taste that many bakers associate with classic cookies and pastries. It also browns beautifully, adding a nutty aroma. Olive oil, especially extra virgin, introduces fruity, grassy, and sometimes peppery notes that can transform a simple cake into something memorable.

The type of olive oil matters. A robust extra virgin olive oil with a peppery finish can overwhelm delicate batters, while a milder one blends in more subtly. For your first swap, choose an extra virgin olive oil you enjoy eating raw, because that flavor will carry into your bake.

• Use a mild extra virgin olive oil if you want the flavor to be subtle.
• Try a peppery one in chocolate or citrus recipes where it can stand up to strong flavors.

Texture and moisture: What to expect

Because olive oil is liquid at room temperature, it doesn't create the same flaky layers as cold butter. Instead, it produces a tender, moist crumb that stays soft for days. This makes it ideal for cakes, muffins, and quick breads where you want a dense, rich bite.

Butter's water content helps leaveners like baking powder and baking soda work, leading to more rise. If you substitute olive oil for butter in a recipe that relies on creaming butter and sugar for aeration, you'll need to adjust your method. Whisk the oil with the wet ingredients instead of creaming it with sugar.

• For cookies that spread and crisp, butter is better.
• For cakes that stay moist, olive oil wins.

How to substitute butter with olive oil

The general rule is to use 3 parts olive oil for every 4 parts butter. So if a recipe calls for 1 cup of butter, use 3/4 cup of olive oil. This ratio accounts for the water in butter and ensures your batter doesn't become too oily.

When substituting, reduce the oven temperature by 25°F (about 14°C) if the recipe was designed for butter. Olive oil can cause baked goods to brown faster, so a slightly lower temperature helps them cook through evenly without burning the outside.

• Use a kitchen scale for accuracy: 1 cup butter = 3/4 cup olive oil.
• If the recipe calls for melted butter, you can swap in the same amount of olive oil without adjusting the method.

Healthier baking oil?

Extra virgin olive oil is rich in monounsaturated fats and polyphenols, which are antioxidants linked to heart health. Butter is high in saturated fat and cholesterol. If you're looking for a more heart-friendly baking fat, olive oil is the clear winner.

But health isn't the only factor. Butter adds calcium and vitamin A, and some people prefer its taste. The best choice depends on your dietary needs and the flavor profile you want. For everyday baking, extra virgin olive oil is a smart swap that doesn't sacrifice moisture.

The trade-off at a glance

• Flavor: Butter offers a familiar, creamy taste; olive oil adds fruity and peppery notes that can elevate or overpower. Choose based on the recipe: use olive oil in cakes where you want a unique flavor.
• Texture: Butter creates flaky layers; olive oil yields a moist, tender crumb. Pick olive oil for muffins and quick breads, butter for pie crusts.
• Health: Extra virgin olive oil has heart-friendly fats and antioxidants; butter is higher in saturated fat. For a healthier everyday bake, olive oil is the better swap.

Products to consider

• Original Extra Virgin Olive Oil (375ml): Made with 100% Koroneiki olives, harvested early and cold pressed in southern Greece. Packed with antioxidants and a robust flavor with a signature peppery finish. A peppery finish adds character to chocolate or citrus cakes, but might be too bold for delicate vanilla batters. Start with a small batch to see if you like the flavor.
• Olive Oil Trio: Our Original Extra Virgin Olive Oil teams up with two of our classic flavors – Garlic and Greek Herb & Lemon – for a trio that is sure to be a cook’s best friend. While the trio is great for savory cooking, the garlic and herb flavors are not ideal for sweet baking. Use the Original bottle for cakes and reserve the others for dressings and marinades.

Which should you choose?

Best for

• Moist cakes, muffins, and quick breads where you want a tender crumb and a fruity flavor.
• Health-conscious bakers looking to reduce saturated fat without sacrificing texture.

Not for

• Flaky pastries like pie crusts and croissants that rely on cold butter for layers.
• Recipes where you want a neutral flavor, such as classic sugar cookies.

Both olive oil and butter have a place in your kitchen. For everyday baking that's moist, flavorful, and a little healthier, reach for extra virgin olive oil. Save butter for the pastries where only its unique texture will do. Experiment with your favorite recipes and enjoy the delicious results.