Melt butter on low heat, once melted slowly whisk in cookie mix until combined

Turn heat up to medium heat then add evaporated milk continuing to stir until well combined and mix is hot.

Add sugar 2 cups at a time stirring it which in medium high heat, continue until combined and brought to a rolling boil.

Add in white chocolate chips stirring until melted and combined

Add vanilla and fluff stirring

Pour mixture into prepped pans, add sprinkles and refrigerate for minimum of 2 hours