Substitutions

Substitute for Buttermilk

6 tested substitutions — with the ratio and the caveat that decides whether it works.

Ratio	Buttermilk	Works in
×1	milk + lemon juice (1 tbsp per cup, rest 10 min) Classic clabbered milk — same acidity for soda lift. Kitchen-tested	baking · cooking
×1	milk + white vinegar (1 tbsp per cup) Neutral acid option. Reference ratio	baking · cooking
×1	Plain yogurt Thinner needed — whisk with a little water or milk. Reference ratio	baking · cooking
×0.75	Greek yogurt Even thicker — dilute ~3:1 with water/milk. Reference ratio	baking · cooking
×1	kefir Same acidity and body — often the best swap. Reference ratio	baking · cooking
×0.75	Sour cream Richer and thicker — thin with milk; skip in drinks. Reference ratio	cooking

Baking is less forgiving than cooking — stick to substitutions marked « baking » and respect the ratio.

Frequently asked questions

What is the best substitute for Buttermilk?

It depends on the recipe — the table above shows which substitutes work in baking vs cooking.

Can I substitute Buttermilk in baking?

Baking is less forgiving than cooking — stick to substitutions marked « baking » and respect the ratio.