Here's the reciepe I made
Pavlova
Preheat oven to 150c
3 egg whites
1t malt vinegar
1t vanilla essence
Beat on speed 4 till egg whites are thick white foamy, then added 4T boiling water and beat some more. next add 1.5 teacups of caster sugar, while mixer was still whisking, add one spoonful at a time, continue mixing till firm peaks then for a couple of minutes more. (Lots of receipes said to continue beating for 10 mins, but it just didn't feel right so I didn't)
Fold in 1T sifted cornflour.
Put onto baking paper. I did a log rather then a 23cm circle as this was to fit the only plate I had.
Put into oven then turn down to 125c on fan bake for 5 mins, then turn to normal bake at 125c for 40 mins.
When cooking was over, I turned the oven off and and opened the door ever so slightly for a few minutes. Unfortunately my ajar opening felt far too open. Then I left it in the oven till I got it out this morning, so that was 18 hours later.
This morning in the lower oven I had to roast an onion for 30 mins thanks to earache for missey, and I noticed that the upper oven was warm when I got the pav out, and it was wonderfully crisp on the bottom, so I'm including this note here just incase it did something to help crisp the bottom up.
Result was an almost perfect pav. I'm going to have to see if I can make a bigger one as this one disappeared so fast.