Add butter, sugar, milk, cocoa powder in a pan .

Bring to a rolling boil .

Boil just for a minute.

Stir in the peanut butter , vanilla essence and the oats.

Line a tray with parchment paper.

Take a spoonful and drop on the parchment paper .

Gently pat with hands.

Let cool to set.

Wrap them in wrappers and store them in an airtight container .

Makes around 20 depending on the size .