Fluffy Pancakes Without Buttermilk (What to Use Instead)
Buttermilk is the ingredient most likely to stop a pancake plan dead. It is the one thing in the recipe you do not already have, it comes in a carton bigger than you need, and it always seems to be sold out on the morning you decide to make pancakes. The good news is that you can make genuinely fluffy pancakes without it. The less good news is that swapping it out is not quite a straight substitution, and the small adjustment nobody mentions is the difference between a good breakfast and one that tastes faintly of soap.
What buttermilk is actually doing
Understanding the job makes choosing a replacement much easier. Buttermilk does three separate things in a pancake batter, and a good substitute needs to cover all three.
First, it is acidic. That acid reacts with baking soda the moment the two meet, producing carbon dioxide bubbles that lift the batter. Second, it is thick — noticeably thicker than milk — and that body is what lets a poured pancake hold its shape in the pan instead of spreading into a thin disc. Third, the acid tenderises. It slows down gluten formation, which means the crumb stays soft even if you were a little heavy handed with the spatula.
Plain milk covers none of those three. That is why you cannot simply pour it in and hope.
The four swaps, in order of how well they work
1. Soured milk (the closest match)
Stir 2 tablespoons of lemon juice or plain white vinegar into 2 cups of whole milk, then leave it alone on the counter for 10 minutes. It will thicken very slightly and look faintly curdled around the edges, which is exactly right and not a sign anything has gone wrong. Use it in place of buttermilk with no other changes at all — the acid is there for the baking soda, and the milk fat handles the richness.
This is what I use most weekends, and in a side-by-side test the pancakes were within a couple of millimetres of the buttermilk version in height. Whole milk gives the best result; semi-skimmed works and is very slightly less tender; skimmed makes a noticeably thinner batter, so hold back a couple of tablespoons of it.
2. Plain yoghurt thinned with milk
Whisk 1 1/2 cups of plain yoghurt with 1/2 cup of milk until it pours smoothly. Greek yoghurt is thicker, so use 1 cup of yoghurt to 1 cup of milk instead. This is arguably the richest version of the three — the extra fat and protein produce a slightly custardy interior — and the acidity is more than enough to activate the soda.
Two cautions. Do not use sweetened or flavoured yoghurt unless you enjoy surprises, and reduce the sugar in the batter to 1 tablespoon if your yoghurt is even mildly sweet.
3. Kefir, straight from the bottle
Plain unsweetened kefir is essentially buttermilk with a more interesting bacterial CV. Pour it in one for one, change nothing else, and you will get an excellent, slightly tangier pancake. If you already buy it, this is the least effort of any option on this page.
4. Plain milk, with a real adjustment
If you want to use milk with nothing added, you can — but you have to change the raising agents. Leave the baking soda out entirely and increase the baking powder to 1 tablespoon.
This is the step people skip, and it is why so many "I just used milk" pancakes have a strange metallic, soapy edge to them. Baking soda needs an acid to react with. With no acid in the bowl, most of it sits there unreacted, and unreacted soda tastes exactly like the thing you use to clean your sink. Baking powder, on the other hand, arrives with its own acid built in, so it works perfectly well in a neutral batter.
Expect a slightly milder, less tangy pancake and a marginally softer crumb. It is a good pancake. It is just less obviously a buttermilk pancake.
Dairy-free versions
Every one of these works with plant milk, with one wrinkle: some plant milks curdle enthusiastically and some barely react. Soy milk sours beautifully — 2 tablespoons of lemon juice to 2 cups, exactly as with dairy — because it has enough protein to actually thicken. Oat milk works well and browns faster than anything else on this list, so drop your pan heat slightly and watch the first pancake carefully. Almond milk is thin; sour it the same way but hold back 2 tablespoons of liquid to compensate. Canned coconut milk is too rich here and makes a heavy, greasy pancake.
What does not work
Cream of tartar dissolved in milk is often suggested and technically supplies acid, but at the quantities needed it leaves a sharp, slightly chalky taste. Sour cream on its own is far too thick and makes a batter you have to spread with a spoon. And powdered buttermilk, reconstituted, is fine but rarely worth buying if you already have milk and a lemon in the house.
The rest of the method does not change
Whichever swap you choose, everything else about the technique stays the same, and the technique is where fluffiness actually comes from. Mix the batter badly, in about twelve strokes, leaving lumps. Rest it for ten minutes so the flour hydrates and the batter thickens. Heat the pan properly before the first pour, and cook until the bubbles on the surface break open and stay open before you flip.
The full method, with every measurement written out and the ingredient notes explained, is on the fluffy buttermilk pancake recipe — just make your swap at the buttermilk line and follow the rest as written. If you want the fastest possible version of the soured-milk trick, including how to speed it up when you have not got ten minutes, read how to make a buttermilk substitute fast. And if your pancakes have been coming out flat regardless of what liquid you use, the culprit is probably one of the four things listed in why your pancakes turned out flat.
Making the pancakes themselves? The full recipe has the batch scaler, the ingredient notes and the pan-heat guide in one place.