Straight down, straight up, never round
This sounds like the kind of instruction that gets passed down without a reason, and there is a completely mechanical one behind it.
A scone rises because the baking powder produces carbon dioxide in the heat, and that gas pushes the dough upwards. It can only do that where the dough is soft and open. The cut edge of a freshly cut scone is exactly that: raw, wet, and full of gaps for gas to travel through.
Twist the cutter on the way through and you drag the dough round as it goes, smearing that open edge into a compressed, sealed ring. The gas now has a wall where it needs a door, so it pushes out wherever the seal is weakest, which is almost never evenly. The scone goes up on one side, or spirals, or tilts.
Flour the cutter, push it straight down to the board, and lift it straight back out. If the dough clings, flour the cutter again rather than wiggling it free.
Cold butter makes layers, warm butter makes biscuits
The same principle that runs through all of pastry, and it is worth understanding once because it explains crumble and shortbread too.
Rub cold butter into flour and it stays as hundreds of separate small pieces, each one coated in flour and distinct from its neighbours. In the oven every one of those pieces melts and then turns to steam, and the steam pushes the dough apart from the inside. That is what gives a scone its flaky, layered break rather than a uniform crumb.
Warm butter does not do that. It smears, coating the flour in a continuous film, and what bakes is dense and short and much closer to a biscuit. Perfectly edible and not a scone.
So: butter straight from the fridge, cubed, and rubbed in with fingertips rather than palms. Your palms are the warmest part of your hand. Lift the mixture high and let it fall back through your fingers, which keeps it cool and aerates it at the same time.
Thicker than looks right
Three centimetres, patted out by hand, no rolling pin. Almost everybody goes thinner than this the first time and then wonders why the scones came out squat.
A scone roughly doubles in height. It does not expand from nothing, so the height you start with sets the height you finish with, and a two centimetre round gives you a four centimetre scone however good the raising agent is. Starting at three gives you something you can split properly.
Pat rather than roll. A rolling pin compresses the dough and squeezes out the air you created rubbing the butter in, which works directly against everything above.
Mild cheese disappears
Fifteen minutes at 220°C mutes flavour considerably, and cheese suffers more than most things. A mild cheddar that tastes pleasant on a cracker is effectively invisible in a finished scone, and what you get is something faintly savoury that nobody can name.
Use the strongest hard cheese in the shop. Mature or extra mature cheddar is the obvious answer. Parmesan works, gruyere works, and any well aged hard cheese works. The test is simple: if you would not happily eat a piece of it on its own, it will not come through.
The mustard is doing a related job from a different angle. You will not taste it as mustard. It sharpens the cheese and makes it read as more cheesy, which is the same reason it goes into a cheese sauce and into welsh rarebit.
Scruffy dough is finished dough
Bring it together with a knife rather than your hands, in as few turns as you can manage, and stop while it still looks like it needs more work. It does not.
Every fold and press develops gluten, and gluten in a scone is straightforwardly bad: it makes them tough and it stops them rising cleanly. Bread dough is kneaded for ten minutes on purpose; scone dough wants about ten seconds of handling in total.
This is the hardest thing to hand to a child, and also the best thing to hand to a child, because they have no instinct that says dough should be smooth. Tell them to stop as soon as there is no dry flour left in the bowl and they will do it more faithfully than most adults.
Common questions
Why should you not twist the scone cutter?
Because it seals the cut edge and the scone then cannot rise straight. A scone rises when the raising agent produces gas and the soft wet edge lets that gas push upwards. Twisting drags the dough round as the cutter goes through, smearing that edge into a compressed ring, so the gas escapes wherever it can instead. That is why twisted scones come out lopsided or spiralled, and it is blamed on the oven.
Why are my scones flat?
Most often the dough was rolled too thin. Pat it out to about 3 cm, which is thicker than looks right, because a scone roughly doubles rather than expanding from nothing. The other causes are overworking the dough, which tightens the gluten and toughens it, an oven that was not hot enough when they went in, and baking powder that has been open long enough to lose its fizz.
Does the butter have to be cold?
Yes, and it is the same principle as pastry. Cold butter rubbed into flour stays as tiny separate pieces, and in the oven each one melts and turns to steam, pushing the dough apart in layers as it goes. Warm butter smears into the flour instead and coats it, which gives a dense uniform crumb closer to a biscuit. Fingertips rather than palms, and work quickly.
Why are my scones tough?
Kneaded or handled too much. Scone dough wants bringing together and nothing more: a few turns with a knife, a gentle pat into shape, and stop while it still looks scruffy. Every extra fold develops gluten, and gluten is what makes bread chewy and scones hard. This is the hardest instruction to follow because scruffy dough looks unfinished.
What cheese is best for cheese scones?
The strongest hard cheese you can find. Baking mutes flavour considerably, so a mild cheddar effectively disappears and you get a scone that is faintly savoury rather than cheesy. Mature or extra mature cheddar is the standard answer; parmesan, gruyere or any well aged hard cheese works. If it is not strong enough to taste clearly on its own, it will not survive fifteen minutes at 220°C.
Why put mustard in cheese scones?
You will not taste mustard, and that is the point. It sharpens and lifts the cheese rather than adding a flavour of its own, in the same way it does in a cheese sauce or a welsh rarebit. A teaspoon in the milk is enough. A pinch of cayenne does a similar job by a different route, and leaving both out gives a perfectly good and slightly flatter scone.
Can you freeze scones?
Freeze them raw rather than baked, and it is a better result than freezing them cooked. Cut them, put the rounds on a tray in the freezer until solid, then bag them. Bake straight from frozen with about five minutes added. A scone is genuinely at its best within a couple of hours of coming out of an oven, and this way every batch is that fresh.
Can children make scones?
Nearly all of it, and rubbing butter into flour is one of the most useful things a child can learn because it turns up in pastry, crumble and shortbread as well. The cutting is theirs too, with the no twisting rule being a genuinely satisfying thing to get right. Only the oven is out, because it runs very hot for this and the trays are heavy.