Is Soy Milk + Lemon Juice a good dairy-free substitute for Buttermilk in Cheesecake?

Yes. A plant-based acidic substitute with neutral flavor, suitable for vegan cheesecakes. Use a ratio of 1 cup soy milk + 1 tablespoon lemon juice (let sit 5 minutes).

Dairy-Free

Dairy-Free Buttermilk Substitute in Cheesecake

2 tested dairy-free options that contains no dairy products (no milk, butter, cream, or cheese). Each with exact ratios and tips for Cheesecake.

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Quick Answer

The best dairy-free substitute for Buttermilk in Cheesecake is Coconut Milk + Lemon Juice (1 cup full-fat coconut milk + 1 tablespoon lemon juice (let sit 5 minutes)). Dairy-free and acidic, but imparts a subtle coconut flavor and slightly different texture.

Dairy-Free Buttermilk Substitutes for Cheesecake

Substitute	Ratio	Notes
⭐ Coconut Milk + Lemon Juice	1 cup full-fat coconut milk + 1 tablespoon lemon juice (let sit 5 minutes)	Dairy-free and acidic, but imparts a subtle coconut flavor and slightly different texture.
Soy Milk + Lemon Juice	1 cup soy milk + 1 tablespoon lemon juice (let sit 5 minutes)	A plant-based acidic substitute with neutral flavor, suitable for vegan cheesecakes.

Detailed Guide: Dairy-Free Buttermilk Substitutes in Cheesecake

⭐ Coconut Milk + Lemon Juice (Best Dairy-Free Option)

1 cup full-fat coconut milk + 1 tablespoon lemon juice (let sit 5 minutes)

Quick tip: Dairy-free and acidic, but imparts a subtle coconut flavor and slightly different texture.

Combining full-fat coconut milk with lemon juice creates an acidic, creamy substitute that mimics buttermilk’s acidity and richness, suitable for dairy-free cheesecake recipes.

Let the mixture sit for 5 minutes to curdle slightly. Use full-fat coconut milk for creaminess; light versions may result in a thinner batter. Be mindful that coconut flavor can subtly influence the cheesecake’s taste.

This substitute yields a slightly different flavor and texture but maintains the necessary acidity and moisture balance.

Soy Milk + Lemon Juice

1 cup soy milk + 1 tablespoon lemon juice (let sit 5 minutes)

Quick tip: A plant-based acidic substitute with neutral flavor, suitable for vegan cheesecakes.

Soy milk acidified with lemon juice provides the necessary acidity and liquid consistency to replace buttermilk in cheesecake, supporting protein structure and leavening.

Allow the mixture to curdle for 5 minutes before use. Use unsweetened soy milk to avoid unwanted sweetness. This substitute works well in vegan or dairy-free recipes.

The resulting cheesecake will have a slightly different mouthfeel but maintain proper texture and tang.