*preheat oven to 175 degree c. Grease the baking pan, set aside.
Step 2:
*mix together- flour, baking powder and salt.
Step 3:
*in a large bowl, cream together butter or oil with sugar.
Step 4:
add eggs and vanilla extract.
Step 5:
*using a hand mixer, mix the dry ingredients in the egg batter. Reserve 3/4 cup of this batter and pour the remaining into the prepared pan.
Step 6:
*stir cocoa in the reserved batter. Using a tablespoon, drop chocolate batter spoon by spoon on the white vanilla batter. Swirl it using a butter knife.
