Melt butter in a thick bottomed pan on very low flame.
Remove from the flame and let the butter cool.Add condensed milk and mix well.
Sift maida,cocoa powder,baking powder,cooking soda and salt together.Make sure there are no lumps in the mixture.
Take a pan with little butter and put the maida mixture with the condensed milk-butter mixture.Add aerated cola and mix it well.
Grease a baking tray with little butter.Dust it with maida and keep it aside.
Pour the batter into the greased baking tray and bake for 30 to 40 minutes at 175 degrees C (350 degree f).
When done,let it cool and then slit it horizontally into two or three do carefully and make it even.
Whip the cream till light and fluffy.Make a layer in the middle of the cake layers like sandwich,with whipped cream and cherries.
Top with whipped cream and cherries.
Grate dairy milk chocolate bar and sprinkle over the cake.refrigerate to set whipped cream.
Drip out some sugar syrup on the cherries to get it stick well with the cake.Decorate more with whipped Chocolate cream mixture in cones.Its all about your imagination. I have decorated with dark chocolate dipped strawberries on top.
Dip the strawberry in melted dark chocolate (by double boiling method), set aside for a few seconds and then place over the chocolate cake, arrange it as your wish. Make a dropping effect with the remaining chocolate all over the sides. And enjoy the yummy Chocolate Cake .