Preheat the oven to 350 degrees and line a baking sheet with parchment paper.
Stir together the peanut butter, sugar, egg, and vanilla extract until smooth.
Split the dough into 12 portions and roll it into balls between your hands.
Place the balls on the prepared baking sheet and press down with the palm of your hand until flat.
Place one button in the centre of the cookie and three chocolate chips on top to make a paw print.
Bake in the preheated oven for 10 to 12 minutes, then remove the cookies from the oven and allow them to cool on the baking sheet for five minutes before transferring them to a wire cooling rack to cool completely.