Cut 4-5 plums in thin slices, and rest in small pieces.
Heat the sugar for glaze with equal quantity of water, let it cook until it forms a thick and brown glaze.
Line a spring form cake tin with baking sheet including the sides.
Spread plum slices in concentric circles, glaze them with sugar.
Melt the butter, beat it with sugar until mixed.
Combine it with condensed milk and vanilla essence.
Beat it till you get a homogenous mixture. Add the dry ingredients with milk. Mix with an electric mixer.
Pour the mixture equally in the cake tin and bake in a pre-heated oven for 40 minutes or until a toothpick comes out clean. Let it cool for 15 minutes.
Place it on a plate upside down. Garnish with fresh plum slices. Best served with ice-cream.