Eggless Walnut Brownie

Directions

1. 1
   1. Preheat oven to 350 degrees F/180 degrees C.
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   2. Grease a cake mould.
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   3. Mix butter and powdered sugar in a bowl with a whisk for 10 minutes till it becomes creamy and fluffy. Set aside.
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   3. Sift together all-purpose flour, cocoa powder, baking powder and baking soda 2 times.
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   4. Add the butter and sugar mixture to the sifted flour mixture. Add milk, yogurt and vanilla essence. Fold it in but don't over stir. Add chopped walnuts.
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   5. Put batter into greased cake mould and bake in the preheated oven for 25-30 minutes. Put a knife in the middle of it - if it comes out clean it means it's ready. Let brownies cool in the pan. Cut into squares when cooled completely.
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   Serve hot, with ice cream if desired.
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   OPTIONAL: Sprinkle rum on brownie