Marble Rum Cake(German Gugelhupf) - cooking recipe

Ingredients

1 c. plus 2 Tbsp. butter
1 c. plus 2 Tbsp. sugar
1 pkg. vanilla sugar
3 to 4 eggs
2 c. plus 4 Tbsp. flour
1 Tbsp. baking powder
1/2 c. milk
2 Tbsp. cocoa
1 Tbsp. sugar
2 to 3 Tbsp. milk
1 tsp. rum extract

Preparation

(Vanilla sugar: Dr. Oetker purchase at Top's or Wegmans.)