Preheat the oven to 350 degrees

In a large bowl, mix together the flour, baking soda and baking powder

Using a standing mixer, cream together the butter, peanut butter, and both sugars until cream and combined

Mix in the egg until blended

Gradually mix in the flour until combined

Using the ice cream scooper, scoop some dough into your hands and roll into a ball

Place the cookie dough balls onto the cookie sheet

Take the bottom of a glass and lightly press down onto the cookies to get round disks.

Bake for 8-10 minutes

Once baked, let the cookies cool for a few minutes before transferring to a wire rack

Using a bowl, melt together the chocolate chips and oil in intervals of 30-45 seconds

Scoop melted chocolate into the piping bag

Cut off the tip of the piping bag and pipe dollops of chocolate into the middle of the cookie

Let the chocolate completely harden