In a sauce pan, add in white chocolate chips and sweetened condensed milk. Turn on to low heat. Keep stirring often until chocolate is melted.

Stir in the dry sugar cookie mix. Stir in the 1/3 cup of sprinkles.

Line a 8x8 or 9x9 pan with parchment paper. Add mixture to the pan and smooth it out. The flatter you make it the fudge will be flat. If you make it taller then it will be thicker.

Place sprinkles on top of the fudge. Place in the freezer for 1 hour.

After the hour you can remove the fudge and cut. Store in the fridge. If you don't plan to serve for some time keep in the freezer in a container and then bring to temperature in the fridge when ready to eat.

Cut the fudge into large squares or small bit size pieces.