Nanaimo Bars

Directions

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   1.
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   Preheat oven to 350F Grease bottom and sides of 8-inch square pan with vegetable oil or spray.
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   For base, melt butter and stir in sugar.
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   Sift cocoa powder into mixture and blend well.
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   Whisk together egg and vanilla extract and add.
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   Blend in chocolate cookie crumbs, coconut and chopped walnuts until evenly incorporated.
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   Press into prepared pan and bake for 10 minutes.
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   Allow to cool for 10 minutes then chill for 20 minutes.
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   2.
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    For filling, beat butter by hand until smooth and beat in custard powder.
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    Heat milk .Add milk to butter mixture a stir in sifted icing sugar a cup at a time, combining well.
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    Spread over base and chill while preparing topping.
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    3.
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    For topping, melt chocolate and butter over a pot of gently simmering water.
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    Pour over vanilla filling and spread to cover evenly.
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    Chill for 30 minutes.
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    4.
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    To serve, slice with a hot, dry knife into 1-inch squares.
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    5.
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    Yield: 1 8-inch square pan.