Preheat the oven to 350 degrees. Line cupcake pan with cupcake liners.

Using a standing mixer, cream together the butter and sugar until light and fluffy

Add the egg and mix until combined

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

In a medium bowl, mix together the milk, vanilla and oil.

Gradually add the dry ingredients, alternating with the milk mixture. Mixing until combined after each add in

Fold in the chocolate chips and crushed Oreos

Fill the cupcake liners 2/3 full.

Bake for 21 minutes or until a toothpick comes out clean

Using a stand mixer, combine all ingredients and mix on medium speed.

Mix in a few drops of the blue coloring

If the blue is to light for cookie monster add in a few more drops. Be sure to scrape down the sides of the bowl!

Mix until you see stiffed peaks in your frosting.

Scoop frosting into the piping bag

Frost the cooled cupcakes

Carefully place two eyes onto the top of the frosting

Using a sharp knife, cut the chocolate chip cookie in half

Place the cookie into the bottom corner of the frosting where his mouth would be