Measure and take maida and baking powder in a mixing bowl,whisk it well.
In another mixing bowl take sugar.
Add water,oil and melted butter.
Then add butterscotch essence.Whisk it well and stir till sugar dissolves completely, set aside.
Now take thick curd in another mixing bowl,add baking soda and vinegar to it.
Now add this to oil-water-sugar mixture.Whisk well.
Now add flour little by little and keep whisking. Whisk well so that there are no lumps, it will form a creamy flowing batter.Now coat butterscotch chips with a tsp of flour
Greece the baking cake tin, dust with maida, pour the batter inside the tin.
Bake in preheated oven at 180 degree for 50 mins, check using toothpick, its ready or not.
Take out and cool well...do not do icing immediately, when the cake comes to normal room temperature then will do icing
Now using whipped cream, add butterscotch food flavour , beat well, keep aside.
Now divide the cake into 3 layers put sugar water syrup in each layer, along with butterscotch crush in each layer, cover the cake using whipped cream nicely.
Put cream on top to cover it nicely,Rotate in clockwise direction, Make a design using caramel,Use toothpick to give cuts, Make it nicely.
Now take another piping bag , put the whipped cream inside,Make drops on top of cake, Put some butterscotch chips in between, place karonda pcs on each drop of cream.