INGREDIENTS
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100g butter
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1 cup sugar
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1 egg
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1½ cups flour
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2 tbsp cocoa powder
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1 tsp mixed spice
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½ tsp baking powder
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2 bananas, mashed
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½ cup chocolate chips
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1/3 cup walnuts, chopped (fine to leave them out if you dont have any)
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1 tsp baking soda
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1 cup warm milk