Take a bowl add butter,oil,&sugar beat it till all are mix well& fluffy
On normal tempt.milk,mix the vinegar &vanilla extract keep it aside.
On butter mixture add condensemilk mix well.
Now add spinach puree mix it well.
Sieve the maida,backingpowder &baking soda.
Now on butter mix ture add little vinegar mixture than maida mix well.
Like this make the cake batter.
Take a microwave bowl put a butter.papper.grease oil than pour the cake mixture ,&put it on preheated microwave.
Bake the cake 30mints on 200F
Spinach cake is ready.