Judge me as much as you want - I thought that I would never say this - but 30 C˚ in London, no! Too much. And this is me talking, a heliopheliac who comes form a country with extreme weather conditions, minus 20 C˚ in Winter, plus 40 C˚ in Summer. The temperature in London should not be allowed to go over 25 C˚, period; it makes me not only bake and eat, but immensely enjoy all sorts of frozen foods which (I am already regretting saying this) I don't even like, like ice cream and sorbet and popsicles, amongst others...
4 cups of fresh strawberries ( smell them before you buy, do not go for that giant superficial ones that most of the supermarkets sell, go for small locally grown that you cam smell from a mile away)
1/4 cup of sugar, or neutral tasted honey
3 tablespoons of lemon juice
few fresh mint leaves (to suit your taste)
1/2 cup of water
Blend together; it must not be too runny; pour into the moulds and freeze for a couple of hours.