Take oil, vanilla extract, lemon juice , jaggery and water in a bowl

Whisk until jaggery is dissolved and all ingredients well combined

Sieve wheat flour, baking soda, beking powder, cocoa powder and salt to the wet ingredients.

whisk it until well combined

Grease the baking pan, then place the baking sheet

Pour the cake mix, gently pat the cake pan

Preheat the oven 180ºC or 355ºF

Place the cake pan, set the timer to 35 minutes

take the pan out and check the cake by inserting the toothpick. it should come clean

Cover it and let it cool

Then remove the cake from the pan as shown. remove the baking paper,

flip it and cut the cake, Serve