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1
Process biscuits in a food processor until the mixture resembles fine breadcrumbs, then add the melted butter and process until combined.
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2
Press biscuit mixture firmly over the base and side of a round (20cm) springform cake pan.
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3
Chill for 30mins or until firm.
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4
Meanwhile, combine 2 tablespoons cream, brown sugar and extra butter in a small saucepan.
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5
Stir on low heat for 3-4 minutes, until the sugar dissolves.
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6
Set aside.
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7
In a separate saucepan melt the chocolate with 2 tablespoons cream on low heat stirring until smooth.
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8
Set aside.
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9
Dissolve gelatin by whisking into water with a fork until dissolved.
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10
Cool slightly set aside.
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11
Using an electric mixer, beat the cream cheese and caster sugar together in a bowl until smooth.
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12
In another bowl whisk remaining cream until soft peaks form.
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13
Stir gelatin mixture into cheese mixture with Mars bars.
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14
Fold in cream.
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15
Pour half of cheese mixture into prepared pan and drizzle with half of the caramel and chocolate sauces.
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16
Pull a skewer backwards and forwards through the mixture several times to create a marbled effect.
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17
Repeat process with remaining cheese mixture and sauces.
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18
Cover and chill for 3 hours until set.
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19
Slice to serve.