Meduria Cake

Ingredients 
225gm Butter
225gm Sugar
4 eggs
2 tsp vanilla essence
50gm milk
225gm Flour
2 tsp Baking Powder
50gm Cocoa Powder

Method:
1. Preheat oven to 180 degrees
2. Whisk Butter and Sugar
3. Mix in 4 eggs with vanilla essence
4. Add egg to butter mixture
5. Add in Milk
6. Sieve Flour and baking powder
7. Add to mixture
8. Divide mixture into 2
9. Add cocoa powder to 1 half
10. alternate mixture in Pan and swirl for marble effect. Bake for 30-35 mins