Help! Runny icing and no icing sugar left. Any ideas?

[ATruthUniversallyAcknowledged]

Argh. I promised my Year 11 class cake tomorrow. I've spent hours slaving over the layers of a rainbow cake and now totally screwed up the icing. I misread the ingredients and added 250ml of milk instead of 25ml. Bugger! I don't have any icing sugar left, the car is out of action and there are no shops within walking distance that sell anything other than booze and fags.

Any ideas? Any way to thicken up runny icing? Flour? Cornflour? Normal sugar? I'll try anything as it can't get any worse!

Normal sugar ground up in a food processor makes icing sugar!

Does it have any consistency at all? Is it just like milk. Is it thick enough to drizzle it over the cake rather than use as a solid sheet?

It's got the consistency of double cream at the moment. I'm so cross with myself!

Normal sugar in a food processor? Not sure if I have the right equipment. Will google that now and see if I think I can do it.

do you booze/fag shops sell chocolate?

Buy chocolate - melt chocolate - splat chocolate on cake.

Otherwise add a big teaspoon of cornflour and very gently heat. Take off heat a soon as it starts to thicken. You will be making effectively making a very sugary custard so treat as such and take usual precauutions to avoid lumps.

put it in the fridge overnight?

Could you add beaten egg white to meringue it - like in royal icing?

or add butter and make it into butter cream - might need a bit of the cornflour and possibly caster sugar if you have any

or meringue frosting

englishmum.com/how-to-make-italian-meringue-icing-seven-minute-meringue-frosting.html

DH says we don't have a food processor or anything sharp enough to powder normal sugar. Damn.

Oooh, liking the melting chocolate idea Westmorland (great name btw. I'm guessing you're near me. Don't have any icing sugar do you ). If I got white chocolate it might even look ok. I'm also out of eggs as I used them all in the cake so can't do meringue.

Add a teaspoon of cornflour to cold water, then heat it up into the icing maybe? It will thicken a sauce or a curry

Otherwise add lemon juice, prick holes into cake and pour over to make a lemon cake

can't be too close to me as no booze/fags shops within easy walking distance mores the pity!

If you are a teacher in the south lakes though I bet we know people in common! small world mumsnet.

Any marshmallows? I also ran out of icing when I was making a rainbow cake and they were all I had. I melted them and put it between some of the layers.

I've given up. Have wrapped cake up in clingfilm. Will take in left over xmas choccies tomorrow and make them wait till fri for the cake. Still fuming at myself!

Add melted chocolate to it and make fudge icing?

Or cocoa?

try putting the bowl of icing in the fridge for a bit and it might thicken enough to spread it (depending on how runny it is at the moment) I did this once and it worked for me!