Pancake mix cake

Ingredients:

Butter	180 g (90g melted, 90g soften)
Sugar	90 g
Eggs	3 (Separated whites & yolks)
Pancake mix	110 g
Chocolate bits	110 g

Steps:

1. Preheat oven to 180 deg C.  Prepare one 6" round cake tin.  Do not grease.
2. Mix both butter consistency into the mixing bowl and add sugar.  Cream both till pale and smooth.
3. Add yolks to mixture and beat well.
4. Gently fold in flour to mixture.
5. In a clean and dry bowl, whisk egg whites till stiff.  Add cream of tartar and whisk till mixed well.
6. Melt chocolate and set aside.
7. Take 1/3 whites and mix well into batter.  Gently fold in another 1/3 whites into batter and repeat for balance 1/3 whites.
8. Pour cake batter into cake tin.
9. Pour melted chocolate into cake batter to create swirls.
10. Drop tin 2x from 10cm height to release trapped air bubbles and allow chocolate to sink into cake batter.
11. Bake for 40-45 minutes at 180deg C.
12. Remove from oven and drop tin onto table to prevent cake from shrinking.
13. Overturn onto cooling rack to cool completely.