Powder the sugar( 1/2 cup +2 tbsp of sugar gives 3/4 cup of powdered sugar)

Whisk yogurt, sugar, and butter until fluffy.

Sieve the all-purpose flour, cocoa powder, and baking powder.

Fold the butter, sugar, and yogurt mixture into the flour. Add vanilla essence to this.

Make it into a pliable dough without any lumps. The dough will be sticky at this stage.

Cling wrap it and refrigerate for an hour.

After an hour take it and take out a small portion and make it into small balls.

Flatten it with your palm and if you want you can make lines with a fork as I did.

Preheat the oven to 160 Celcius for 5 minutes.

Grease the tray and place the flattened dough on them.

Bake it for 10-12 mins at 160-degree celsius.

Mine got done in 12 mins.

Cool on the wire rack. Store them in an airtight container.