This may be called a ‘cake’ in English, but it is really a jelly. A jelly that is very lightly set using agar, and resembles a crystal-clear raindrop, accompanied by a flavoured syrup. I’ve gone with a matcha syrup for this recipe, but traditionally it is served with the black sugar syrup (see page 188 of the book) and sprinkled with kinako (roasted soy bean flour). A raindrop cake looks spectacular, and with the right moulds (spherical ice moulds or semicircular moulds) is very easy to prepare. This makes it a great, easy dessert for busy izakayas, and a refreshing end to a meal.
1 g (1/28 oz) kanten agar
400 ml (14 fl oz) water
80 g (23/4 oz) sugar
2 teaspoons matcha powder, plus extra for sprinkling
Set out four small bowls or circular moulds, about 6 cm (21/4 inches) in diameter. In a small saucepan, combine the agar, water and 20 g (3/4 oz) of the sugar. Bring to a simmer, stirring constantly to dissolve the sugar and agar. Working quickly, so the liquid doesn’t start solidifying in the pan, pour the mixture into the bowls, then refrigerate for at least 2 hours to set.
Make a matcha syrup by whisking together the matcha powder and remaining (60 g) sugar in a small bowl. Heat 30 ml (1 fl oz) water in a small saucepan until simmering, then slowly stream it into the matcha powder and sugar, whisking well.
Pour the mixture back into the saucepan and cook over low heat, just until the sugar has dissolved. Pour the syrup into a container and refrigerate.
When the cakes have set, unmould each one onto a serving plate. Spoon the matcha syrup around them, sprinkle a little matcha powder over and serve.
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