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Best Butter Substitute in Sourdough Bread

5 tested options with exact ratios, science-backed explanations, and tips for success.

Quick Answer

The best substitute for Butter in Sourdough Bread is Olive Oil because it provides a similar fat content that enhances crumb tenderness and crust browning without altering the bread's fermentation or structure.

Top 5 Butter Substitutes for Sourdough Bread

Substitute Ratio
Olive Oil (Best) 0.8 tablespoons per 1 tablespoon of butter
Avocado Oil 0.8 tablespoons per 1 tablespoon of butter
Vegetable Shortening 1 tablespoon per 1 tablespoon of butter
Ghee 1 tablespoon per 1 tablespoon of butter
Sunflower Oil 0.8 tablespoons per 1 tablespoon of butter

Detailed Guide: Each Butter Substitute in Sourdough Bread

Olive Oil (Best Option)

0.8 tablespoons per 1 tablespoon of butter
Vegan Dairy-Free Nut-Free Gluten-Free
Quick tip: Provides a moist crumb and slightly fruity flavor that complements sourdough without compromising dough elasticity.

Olive oil is primarily composed of monounsaturated fats, which help tenderize the crumb similarly to butter’s saturated fats but with a lighter mouthfeel. It integrates well into the dough matrix, supporting gluten development and fermentation by not introducing excess water.

For best results, use extra virgin olive oil to add subtle flavor nuances. Avoid overuse as too much oil can weaken gluten structure and reduce oven spring. Incorporate the oil during mixing to ensure even distribution.

Compared to butter, olive oil yields a slightly softer crust and a more open crumb, with a mild fruity aroma that enhances the sourdough’s complexity without masking its characteristic tang.

Avocado Oil

0.8 tablespoons per 1 tablespoon of butter
Vegan Dairy-Free Nut-Free Gluten-Free
Quick tip: Neutral flavor and high smoke point make it a good fat substitute that maintains dough elasticity and crumb softness.

Avocado oil contains a high proportion of monounsaturated fats similar to olive oil, which helps maintain the tender crumb and crust texture in sourdough bread. Its neutral flavor allows the natural sourdough taste to shine through.

Use refined avocado oil to avoid any grassy or strong flavors. Incorporate it evenly during mixing to ensure consistent fat distribution. Monitor dough hydration as oil can slightly alter water absorption.

The final bread will have a soft crumb and a mild crust sheen, with no significant flavor interference compared to butter.

Vegetable Shortening

1 tablespoon per 1 tablespoon of butter
Vegan Dairy-Free Nut-Free Gluten-Free
Quick tip: Neutral flavor and solid fat state help mimic butter’s texture but may reduce flavor complexity.

Vegetable shortening is a hydrogenated fat that remains solid at room temperature, similar to butter, which helps create a tender crumb and flaky texture in sourdough bread. It does not contain water, so it won’t affect dough hydration.

Ensure the shortening is fully incorporated during mixing to avoid uneven fat pockets. Because it lacks butter’s milk solids, it won’t contribute to Maillard browning as much, potentially resulting in a paler crust.

The bread will have a tender crumb but a less rich flavor and slightly different crust color compared to butter-based sourdough.

Ghee

1 tablespoon per 1 tablespoon of butter
Gluten-Free Nut-Free
Quick tip: Clarified butter with a nutty flavor that enhances crust browning but lacks water content.

Ghee is butter with the milk solids and water removed, leaving mostly pure butterfat. This fat composition supports crumb tenderness and promotes a well-browned crust due to its high smoke point and rich flavor.

Because ghee lacks water, it will slightly reduce dough hydration, so minor adjustments to water content may be necessary. It also intensifies the buttery flavor without adding lactose, which can be beneficial for some dietary restrictions.

Compared to butter, ghee produces a richer flavor and crispier crust but may result in a slightly drier crumb if hydration is not adjusted.

Sunflower Oil

0.8 tablespoons per 1 tablespoon of butter
Vegan Dairy-Free Nut-Free Gluten-Free
Quick tip: Light flavor and liquid fat that tenderizes crumb but may slightly reduce crust crispness.

Sunflower oil is a neutral-flavored liquid fat rich in polyunsaturated fats that help tenderize the crumb by coating gluten strands and reducing toughness. It integrates well into sourdough dough without interfering with fermentation.

Use refined sunflower oil to avoid any off-flavors. Because it is liquid at room temperature, it may reduce crust crispness compared to solid fats, so consider baking slightly longer or at higher heat.

The final sourdough will have a soft crumb and mild flavor, but the crust may be less crunchy and less browned than with butter.

Vegan Butter Substitutes for Sourdough Bread

Full Vegan guide →
Olive Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Provides a moist crumb and slightly fruity flavor that complements sourdough without compromising dough elasticity.

Avocado Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Neutral flavor and high smoke point make it a good fat substitute that maintains dough elasticity and crumb softness.

Vegetable Shortening
Ratio: 1 tablespoon per 1 tablespoon of butter

Neutral flavor and solid fat state help mimic butter’s texture but may reduce flavor complexity.

Sunflower Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Light flavor and liquid fat that tenderizes crumb but may slightly reduce crust crispness.

Gluten-Free Butter Substitutes for Sourdough Bread

Full Gluten-Free guide →
Olive Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Provides a moist crumb and slightly fruity flavor that complements sourdough without compromising dough elasticity.

Avocado Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Neutral flavor and high smoke point make it a good fat substitute that maintains dough elasticity and crumb softness.

Vegetable Shortening
Ratio: 1 tablespoon per 1 tablespoon of butter

Neutral flavor and solid fat state help mimic butter’s texture but may reduce flavor complexity.

Ghee
Ratio: 1 tablespoon per 1 tablespoon of butter

Clarified butter with a nutty flavor that enhances crust browning but lacks water content.

Sunflower Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Light flavor and liquid fat that tenderizes crumb but may slightly reduce crust crispness.

Dairy-Free Butter Substitutes for Sourdough Bread

Full Dairy-Free guide →
Olive Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Provides a moist crumb and slightly fruity flavor that complements sourdough without compromising dough elasticity.

Avocado Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Neutral flavor and high smoke point make it a good fat substitute that maintains dough elasticity and crumb softness.

Vegetable Shortening
Ratio: 1 tablespoon per 1 tablespoon of butter

Neutral flavor and solid fat state help mimic butter’s texture but may reduce flavor complexity.

Sunflower Oil
Ratio: 0.8 tablespoons per 1 tablespoon of butter

Light flavor and liquid fat that tenderizes crumb but may slightly reduce crust crispness.

❌ What NOT to Use as a Butter Substitute in Sourdough Bread

Margarine

Margarine often contains water and emulsifiers that can interfere with gluten development and fermentation in sourdough, leading to a denser crumb and less desirable crust texture.

Applesauce

Applesauce lacks fat and has high moisture content, which disrupts the dough's hydration balance and crumb structure, resulting in a gummy or overly moist sourdough loaf.

Coconut Oil

Coconut oil solidifies at room temperature and has a strong flavor that can overpower the sourdough's natural tang, while its saturated fat profile can negatively affect crumb softness and fermentation dynamics.

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