Romanian Sweet Marble Bread (Chec)

This is another sweet memory from my childhood.  My mom would make this as often as she could.  It is simple and delicious.  Enjoy!
Yields one large loaf
-1 1/4 cups sugar
-3 eggs
-1/2 cup vegetable oil
-1 cup milk
-1 tsp imitation rum extract
-1 tsp vanilla extract
-2 cups flour
-1 Tbs baking powder
-2 Tbs lemon juice
-2 Tbs cocoa powder
Preheat oven to 350 F.  Coat a 10x6 pan (a large one) with the baking spray (the one with flour in it).  Set aside.
Cream the sugar with the eggs and oil.  Add the milk and extracts.  Mix well.  Add 1 cup of flour.  Mix well.  While that's mixing, combine the baking powder with the lemon juice in a separate bowl.  It will bubble up.  Add that mixture to the sugar one.  Mix well.  Add the remaining cup of flour and mix until well incorporated.
Pour 3/4 of the batter into the prepared pan.  Mix the remaining batter with the cocoa powder.  Pour it into the plain batter and swirl it, like this:
Bake in preheated oven for 60-70 minutes or until toothpick comes out clean.
Let it cool in the pan for about 15-20 minutes.
Remove from pan and let it cool completely on wire rack.  Slice and enjoy!
Adapted from my mom's recipe.