- 2½ gelatine leaves (titanium strength)
- 30 ml espresso, cooled
- 330 gm white sugar (1½ cups)
- 160 ml corn syrup
- Scraped seeds of 1 vanilla bean
- For greasing: oil
- 160 gm pure icing sugar
- 10 gm Dutch-process cocoa
- 10 gm cornflour
- 1Break gelatine into small pieces, combine in the bowl of an electric mixer with coffee and 50ml cold water and set aside. Combine sugar, corn syrup and 125ml water in a small saucepan, stir over medium-high heat until sugar dissolves, then bring to the boil and cook until syrup reaches 115C on a sugar thermometer (2-3 minutes).
- 2Whisk gelatine mixture on low speed, add hot syrup in a thin steady stream down the side of the bowl, add vanilla and whisk on high speed until thick and fluffy and tripled in volume (8-10 minutes). Spoon into a lightly oiled 18cm x 23cm cake tin, quickly smooth top with a lightly oiled spatula and stand at room temperature until set (2-3 hours).
- 3Sift icing sugar, cocoa and cornflour into a bowl. Turn marshmallow out of tin onto a lightly oiled piece of baking paper, cut into 3cm cubes with a lightly oiled knife, then toss in cocoa mixture. Store in an airtight container, in cocoa mixture, until required. Marshmallows will keep for a week.
Note This recipe makes about 42 pieces.
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