Preheat the oven to 350 degrees. Then line your baking sheet(s) with parchment paper and set aside.
In a large mixing bowl, combine the sugars (1 cup brown sugar & ½ cup sugar) and (1 cup) softened butter. Mix together until creamy and smooth.
Next, add in the 2 eggs, butterscotch pudding mix and (1 tsp) vanilla. Mix until thoroughly blended.
Add in the (2 ½ cup) flour, (3 tbsp) cocoa powder, (1 tbsp) corn starch, (1 tsp) baking soda and (1 tsp) salt. Mix well, making sure to scrape down the sides and mix again until thoroughly combined.
Take a large spoon or tablespoon and scoop out the dough, lightly rolling into 1-inch size balls. Place the dough on your parchment lined baking sheets and gently press a finger into the center of each one, making a slight indent.
Open up your mini m&m's and begin separating the colors between the 4 houses (red, yellow, green, blue).
Where we made an indent, fill each cookie with about 3-4 candies of the same color. Then, carefully fold the dough back over the candies and gently roll, so that the candies are fully hidden within the dough.
Bake in the preheated oven for about 8-10 minutes. The edges of the cookie should be set and the center no longer shiny in appearance.
Immediately upon removing from the oven, place a single Hershey’s kiss on top of each cookie. You may gently wiggle the kiss while pressing down, causing the melting bottom to create a "hat brim".
Wait around 5 minutes, allowing the heat from the cookie to soften the kiss and using a toothpick, draw the eyes and mouth of the Sorting Hat onto each kiss. (*See notes below)
Allow time to cool for about 1-2 hours to allow the chocolate to completely re-solidify. Serve & enjoy on your next Harry Potter marathon and let me know what house you get!