Marbled Chocolate Brownies

Directions

1. 1
   Preheat oven to 170 degrees celcius (150 degrees fan forced).
2. 2
   Grease a 20cm square cake tin, then line with baking paper, allowing paper to overhang on 2 sides.
3. 3
   Place half of the butter and half of the sugar into one mixing bowl, then the other half of the butter and sugar into another bowl.
4. 4
   Place dark chocolate into one of the bowls and white chocolate into the other.
5. 5
   Bring two saucepans of water to a simmer. Place bowls over saucepans of simmering water, and stir each gently until mixture is smooth. Remove from heat and allow to cool slightly.
6. 6
   Add one egg to each bowl, add vanilla to the white chocolate mixture. Whisk each mixture until combined.
7. 7
   Sift half of the flour into each bowl and fold until combined.
8. 8
   Drop alternating spoonfuls of each mixture into the prepared pan. Using the end of the spoon, gently swirl the mixture to give it a marbled effect. Be careful not to mix too much.
9. 9
   Bake for 35 minutes, or until the centre is just firm. Allow to cool completely in the pan before cutting and serving.