Take the butter and the sugar and start whisking it till pale and fluffy
Add 1 egg at a time and whisk. Add eggs in intervals
Serve the flour and add baking powder to it
Add the flour and buttermilk, alternatively till all the flour and buttermilk is used up. Dive the batter into 2 parts
Melt the chocolate (use microwave for 30 sec or use double boiler method)
Add the melted chocolate to 1 part of the batter. Fold and whisk, do not whisk at this stage
Grease a burnt pan with butter and add the white part of our batter
Add the chocolate batter over it
Even out the batter
Preheat the oven at 180 D c and bake the Bundt cake for 55 to 60 mins or till a toothpick inserted comes out clean
Notes
Keep all the ingredients at room temperature. Do not open the oven again and again Always use fold and mix method when mixing any liquids at the last stage. Buttermilk=Milk + vinegar not chaas plz