I know this may sound crazy, but I'd like to buy some food products from M and S's Simply Food and take them to my mother who grew up on these products and now in a country where there is no M and S. Unfortunately, some of the products I'd like to buy are perishables (cheese, yoghurt - I'm not kidding, custard, etc). WHich of these products would not be allowed through security under the liquid and gel ban? I'm guessing yoghurt wouldn't be allowed, not sure about custard and I know this may sound silly, but I'd like advice on how I could possible pack these products in my suitcase if need be to transport to them to my mum. Obvioulsy, I don't want the products going bad when transporting them and I don't want messy youghurt all over my clothes.

Any advice? Please, please help. Thanks.