Preheat your oven to 160 C/ 325 F .
Butter and flour a 5 inch round pan . Line the bottom with parchment paper (optional)
Line a large strainer with a clean muslin cloth. Place strainer over a saucepan.
Bring the milk to a boil over medium heat.
When it starts to boil , lower heat. Add one tablespoon vinegar and stir.
The milk solids (chena) will separate and the water will be clear. If needed , add another tablespoon vinegar.
Pour this over the muslin lined strainer . The Chena will collect in the cloth .
Wash the chena with clean water .
Squeeze the extra water out. Don't make it completely dry.
Transfer the chena to a bowl .
Once cool enough to handle, press / knead it until smooth
Add the other ingredients and knead until smooth
You ll get a thick batter - spread into your prepared pan and even out
Bake for 30-35 mins at 160 C /325 F until top is light brown.
Cool in pan for 5 mins. Then run a knife around the inner side of the pan to loosen cake edge. Gently unmould
Cool on a wire rack
Serve warm or cold !