Two eggs, a mug, and about 75 seconds of microwave time in three short bursts with a stir between each. That is the whole thing, and done that way it produces soft curds rather than the rubbery yellow puck the method is famous for. The single blast is what ruins it.
I made these most weekday mornings for a couple of years when my kitchen was a shared one and the hob was always occupied. Here are the questions I actually got asked about them, roughly in the order things go wrong.
Can microwave scrambled eggs actually be good?
Very good, not identical to pan eggs, and I would rather say that plainly than oversell it. You get soft, loose, slightly steamy egg with curds a bit larger and rounder than a pan makes. You do not get the faint browned-butter flavour, because nothing in a microwave gets hot or dry enough to brown.
They are usually bad because people treat the machine as a timer you set once. Egg protein turns from liquid to solid over a narrow band, roughly 65 to 70°C, and a microwave carries it straight past that in ten unattended seconds. Cook in intervals and you get to decide when to stop.
Why do mine explode or climb out of the mug?
Steam, with nowhere to go. As the outer egg sets it forms a skin, water underneath turns to vapour, the vapour cannot escape through the set layer, and it lifts the whole mass up and over the rim. It usually happens between 40 and 60 seconds, right when you have looked away.
Two fixes, and you need both. A mug at least twice the volume of the raw egg — 300 ml or larger for two, so the mix sits a third of the way up. And a stir between every interval, scraping base and sides, which collapses the skin before it traps anything.
My worst one went over the edge of a 250 ml mug and set on the turntable in a thin sheet. It came off, eventually. Use the bigger mug.
How long exactly, and at what wattage?
Wattage changes everything, and this is where most recipes quietly cheat by not saying. My microwave is 800W, and two eggs take 30 seconds, a stir, then 15-second bursts until they look nearly done. Total is usually 70 to 80 seconds.
On a 1000W machine the same eggs are done in about 55 to 65 seconds and the first burst should be 25 seconds, not 30. On a 700W machine, expect 95 seconds to nearly two minutes, and the intervals can stay at 20 seconds because the whole thing moves more slowly. The wattage is usually printed on a sticker inside the door frame or on the back panel.
Add roughly 20 seconds per extra egg, and stop trusting my numbers after your first go. Every machine has its own hot spots.
Milk, water, or nothing?
Water, a teaspoon per egg. Boring answer, better result: the water turns to steam inside the curds as they set and props them apart, so the texture stays loose. Milk brings its own proteins and sugars, which set alongside the egg and firm everything up — the opposite of what you want in a machine that already overcooks.
Nothing at all works fine and gives you a denser, more custardy result. Skip both if you like eggs on the rich side. I use water on weekdays and, when I want something closer to a proper plate of fluffy scrambled eggs, I use the pan.
Ingredients
- 2 large eggs
- 2 tsp water
- 1/4 tsp fine salt
- Black pepper
- 1/2 tsp butter, optional but worth it
- 1 tbsp grated cheddar, optional
Instructions
- Butter the inside of a 300 ml or larger mug, base and up the sides. It stops the sticking and it is easier to wash.
- Crack in the eggs, add the water, salt and pepper, and beat with a fork for 20 seconds until no streaks of white remain. Streaks cook into rubbery white ribbons.
- Microwave uncovered at full power for 30 seconds at 800W. Adjust for your machine.
- Stir with the fork, scraping the set egg off the base and sides into the middle. It will look like wet, lumpy soup. That is correct.
- Microwave in 15-second bursts, stirring after each. Two or three bursts is normal.
- Stop while the surface still looks wet and slightly underdone. Do not wait for it to look finished in the microwave.
- Stir once more and leave for 30 seconds. It sets to the right texture in the mug. Add cheese now if you are using it.
Why do mine come out rubbery?
Because you cooked them until they looked done. Residual heat in a mug of hot egg keeps working for another 20 to 30 seconds after the machine stops, and eggs that were perfect at the beep are tight and squeaky by the time you sit down.
Pull them at the point where a third of the surface still looks glossy and wet. Every single time I have thought “just five more seconds”, I have been wrong.
Does the mug material matter?
More than you would expect. Thick stoneware soaks up heat and radiates it back into the eggs afterwards, pushing that carryover well past 30 seconds. Thin porcelain overshoots less. If a heavy mug is what you own, stop 10 seconds earlier and tip the eggs onto a plate.
Can I add cheese and vegetables?
Cheese, yes, and stir it in during the final rest rather than at the start, where it separates into greasy pools. Grated hard cheese melts through in the residual heat perfectly well.
Vegetables are the trap. Mushrooms, tomatoes, courgette, raw onion, spinach: all of them release water into the egg and leave you with a weeping mug. Cook them alone in the same mug for 45 seconds first, then pour off the liquid. Spring onion, herbs and cooked leftovers go straight in — cold potato from a sheet pan breakfast hash is my favourite, and needs nothing done to it.
Is it safe to microwave an egg in its shell?
No. Never microwave an egg in its shell, and never microwave a whole yolk with the membrane intact, even out of the shell. Steam builds with no way out and the egg bursts, sometimes in the machine and sometimes seconds later in your hand or on the plate. The contents come out at well over 90°C.
Beaten eggs are safe because there is no sealed compartment left. If you want a runny yolk in the morning, cook it in water on the hob — a soft egg like the one in this savoury oatmeal with a jammy egg takes six and a half minutes and cannot be shortcut.
How does this compare with a pan, honestly?
The pan wins on texture and flavour, and it is not close if you take your time. Low heat, butter, constant stirring, small curds. No microwave matches that.
The mug wins on everything else. One vessel, no hob, roughly 90 seconds door to fork, and nothing to scrub if you buttered it first. On a morning where the alternative is no breakfast, it is not a compromise at all.
The leftovers point nobody mentions: cook three eggs this way, eat two, and chop the third cold into an egg salad sandwich for lunch. Microwave curds are drier than pan curds, which makes them better at holding mayonnaise without going sloppy.