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1
Preheat oven to 180u00b0C Grease a 22cm round loose bottom cake tin and line the base with baking paper.
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2
Wash the orange and place it in a saucepan(do not peel the orange-leave it whole). Cover with water and weigh the orange down with a smll saucer or bowl. Bring to the boil and then simmer for 10-15 minutes. Remove the orange from the saucepan and allow it to cool for 10 minutes.
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3
Chop the orange coarsely and discard any seeds.
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4
Place the orange and any of its juice into a food processor and pulse until it is finely chopped. Add the butter, sugar, flour, gum, polenta, almond meal, baking powder, egg yolks and the liquer. Pulse until just combined- do not over process.
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5
In a seperate bowl- whisk the egg whites until soft peaks form.
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6
Fold the egg whites into the orange mixture.
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7
pour the cake mixture into the prepared tin and bake for 40- 45 minutes.
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8
Meanwhile- combine the orange syrup ingredients in a small saucepan. Stir over a medium heat until the sugar has dissolved. Bring to the boil and cook for 2 minutes. The syrup will thicken slightly. Set the syrup aside until the cake is cooked.
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9
When you remove the cake from the oven, poke holes all over the surface and down into the cake( this allows the syrup to be absorbed better). Leave the cake in the tin.
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10
Pour all of the syrup over the surface of the cake and let the cake stand for at least 20 minutes, or until the syrup is absorbed into the cake.
