Preheat oven to 350 degrees and line two cookie sheets with parchment paper or silicone baking mats
Using a standing mixer, beat the butter, peanut butter, brown sugar, and regular sugar until creamy. Push down sides as needed.
Beat in eggs, 1 at a time until combined
Beat in the vanilla extract
Whisk the dry ingredients into a medium bowl then gradually beat the dry ingredients into the wet ingredients
Using a medium cookie scoop, scoop dough into your hands and roll into a ball.
Place the dough balls onto a cookie sheet and lightly press them into a thick round disk
Bake in the oven for 12-15 minutes or until lightly brown on the sides
Allow to cool completely before removing from cookie sheet
Using a small pot, bring the heavy whipping cream to a simmer and pour over the chocolate chips
Allow to sit for a minute before whisking until smooth
Allow to sit for 10 minutes to thicken before scooping into the piping bag
Once the ganache is in the piping bag, pipe tight spirals on the top of the cookies
Place a few muddy buddies on top of the ganache
Dust powdered sugar on the top of the cookies
Serve and Enjoy!