Cake without an oven: what works
Four ways to bake a cake without an oven, compared: the frying pan, the microwave, the pressure cooker and the fridge. What each one gets right, and what it can never give you.
You can make a cake without an oven. Not any cake, and not with any recipe: the four methods that work give four different results, and none of them truly reproduces what an oven does.
My oven died one July, in the middle of a week of birthdays. That is when I tested all of this properly, in no particular order, with the failures that came with it.
What the oven does, and what has to be replaced
An oven surrounds the batter with dry heat. Three things follow from that, and they are exactly the three you lose when you do without.
It cooks from every side at once, so the batter rises evenly. It dries the surface, which creates the crust and the golden colour, through the Maillard reaction that starts around 140 °C. And it gets hot enough for the baking powder to release its gas before the batter sets.
Every oven-free method loses at least one of the three. Knowing which one tells you what sort of cake you can hope for.
The four methods, compared
| Method | Time | What you get | What you lose |
|---|---|---|---|
| Covered frying pan | 25 to 35 min | A moist, dense cake, 3 to 4 cm tall | The crust on top, which stays pale and damp |
| Microwave | 2 to 5 min | A single portion, very moist | Structure, and any colour at all |
| Pressure cooker or steamer | 30 to 45 min | A texture closer to pudding, very wet | The crust, and the lightness |
| Fridge, no baking | 4 h to overnight | A firm, sliceable set dessert | The crumb, it is another cake entirely |
The column that matters is the last one. If the original recipe depends on a crust or on an airy crumb, none of these methods will save it.
The frying pan cake, the closest to a real cake
This is the one I use most. The principle: a heavy pan, a lid, very low heat, and patience.
You need a thick-bottomed pan, ideally cast iron, otherwise the base burns before the centre sets. The lid is not optional: it traps the steam that cooks the top. The heat must stay at the minimum, on the smallest burner you have.
Pour the batter about 3 cm deep, no more. Beyond that the centre stays raw. Allow 25 to 35 minutes depending on your hob, and never lift the lid during the first twenty minutes.
Two classic failures, both of which I have managed:
- The base burns and the top is liquid. The heat was too high. Go down one notch and extend the time, there is no other fix.
- The top is sticky. That is normal: the steam falls back onto it. Flip the cake in the pan for two minutes, uncovered, at the end.
A pound cake or yoghurt cake batter takes this treatment very well, and can then be finished with an icing that needs no icing sugar. A genoise will not: it needs dry heat to hold.
The mug cake, for one portion only
A microwave cooks by agitating water molecules, from the inside out. It is very fast, and that is exactly why it never browns: the surface never reaches Maillard temperature.
What works: a single-serving batter, in a mug, 50 to 90 seconds at 800 W. What fails: anything over 5 minutes or 200 g of batter. Past that point the edges turn rubbery while the centre stays raw.
A mug cake is always better slightly underdone. If you see a shiny patch in the centre as you take it out, that is the right moment: it finishes setting as it cools. Ten seconds more gives you a dry sponge.
The pressure cooker, underrated
You cook the cake in a water bath, in a sealed tin on a trivet, with 2 cm of water in the bottom of the pot. The heat is moist and never above 100 °C under the valve.
The result is closer to a pudding than a cake: dense, very moist, with no crust. On a chocolate cake it is excellent. On a fruit cake much less so, as the fruit sinks for lack of structure.
The tin must be sealed tight, with foil or a lid. Otherwise condensation soaks the surface within fifteen minutes.
The no-bake cake, which is not a cake
Crushed biscuits, fat, a creamy mixture, and the cold does the rest. It is the only method that cooks nothing at all.
It does not replace a moist cake, it makes a different one, and the no-bake chocolate cake is its most accomplished form. It is unbeatable in summer, and it is the only one that works with no heat source whatsoever. The thing to watch is the set: it is the solidified fat that gives structure, so a mixture that is too liquid will never set, even overnight.
What does not work, and what you read everywhere
The toaster. The heat comes from two very close elements, by direct radiation. The top carbonises before the centre warms up.
The deep fryer. Oil at 170 °C cooks the surface in seconds and forms a sealed barrier. The centre stays raw, however long you leave it.
An uncovered pan. With no trapped steam, the top never cooks. You get a pancake burnt underneath and raw on top.
Frequently asked questions
Can you make a genoise without an oven? No, not properly. A genoise relies on air beaten into the eggs, which only the fast dry heat of an oven can set before it collapses. In a pan it sinks every time.
What temperature for a pan-cooked cake? The lowest setting on your hob. In practice the batter should barely tremble at the edges. Any sizzling at all is already too hot.
How do you know it is done without being able to see the colour? A knife tip in the centre should come out clean, and above all the cake should have pulled away from the sides on its own. That shrinking away is the most reliable sign when you have no colour to go by.
Can any recipe be adapted? Recipes based on baking powder, yes. Those relying on whipped egg whites or puff pastry, no: they need the oven. The same goes for a tart, whose shortcrust pastry needs dry heat to hold its sides.