Let’s be honest, cocktails without any ice cubes in summer just aren’t worth the hassle! But sometimes, we completely forget to fill the ice tray in advance and then we’re left with two options. Make a drink without ice or wait hours for the freezer to do its thing.The good news is, there’s a great trick that will allow you to make ice cubes in under 30 minutes. Yes, you read that right!The special ice cube trickAccording to Grazia’s website, all you have to do is put a little hot water in your ice cube tray. When you mix hot and cold water and then place the ice cube tray in the freezer, the contents will freeze in less than 30 minutes. This works because the different temperatures create a type of chemical reaction when they come into contact with temperatures below 0°c.Where does this phenomenon come from?As Grazia explains, this phenomenon, as amazing as it sounds, is known as the Mpemba effect. It was discovered by Erasto Mpemba, a Tanzanian schoolboy who discovered it back in 1963.This handy little trick will allow you to make all kinds of cocktails with ice cubes in record time!How can you spice up your summer cocktails?Tired of the classic gin and tonic or other boring combinations? Well, it's possible to make alcoholic, or non-alcoholic, drinks a bit more original and unique with a slight sprucing up of the recipe. Yes, please!You can easily add a bit of flair to your drinks by putting edible flowers or pieces of berries such as strawberries or raspberries into your ice cube tray with the water. For an extra little zing, you could even add bits of lemons and oranges. You’ll thank us later, it’s amazing!