(Optional) Add 100 g of M&M minis to a mortar and pestle and crush in to small pieces. Set aside. Dip top of milkshake glass into melted chocolate, set aside until chocolate is tacky to the touch. Once tacky, dip into the crushed M&M mini pieces to cover the rim. Place in fridge until set.
Place ice cream, 2 pumps of Edlyn Cookies & Cream Topping, 50 g of sugar cookie dough, milk, and a handful of whole M&M minis into a milkshake mixer. Blend until well combined and smooth.
Using your pre-prepared milkshake glass (Step 1), drizzle 2 pumps of Edlyn Caramel Topping inside the rim of the glass. Pour milkshake mixture into glass.
To serve, top with whipped cream and M&M minis. Roll remaining cookie dough into 2 balls and thread through metal straw.