Add the ripe pineapple chunks, coconut milk, and ice cubes to your blender.
Blend the mixture on high speed until the ice is crushed and the drink is smooth, about 30-45 seconds.
Check the consistency; if it’s too thick, add a splash more coconut milk and blend again for a few seconds.
Pour the slushie into chilled glasses, allowing the icy mixture to swirl into a vibrant yellow and white pattern.
Garnish with a small pineapple wedge or a sprinkle of shredded coconut if desired.
Serve immediately with a straw and enjoy the refreshing, creamy texture.