Line an 8x8 inch baking dish with parchment paper and spray with cooking spray.
In the bowl of a stand mixer, combine condensed milk, coconut, icing sugar, and vanilla. Mix on medium speed until fully combined and the mixture is thick and sticky.
Transfer half of the mixture to the prepared baking dish. Press firmly into an even layer across the bottom, making sure to reach all corners.
Add red food coloring to the remaining mixture in the stand mixer. Mix on medium speed until the color is fully combined and uniform.
2 drops red food coloring
Press the pink mixture evenly over the white layer in the baking dish. If using sprinkles or edible glitter, gently press them into the top now.
Optional: star sprikles and ediable gold glitter
Cover and refrigerate for at least 2 hours, or until firm enough to slice cleanly. Remove from pan by lifting the parchment paper. Place on a cutting board and cut into 36 even pieces (6 rows by 6 rows).
Video
Notes
Storage: Store in an airtight container at room temperature for up to one week, refrigerated for up to 2 weeks, or frozen for up to 3 months.Color Variations: Adjust the amount of food coloring to achieve your desired shade of pink, or use different colors to match party themes.